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Doctor insights on: Can Too Much Water Give You A Headache

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Can too much water cause a headache?

Can too much water cause a headache?

Yes.: There is a syndrome known as water intoxification. Athletes who only drink water and no electrolyte replacement after viderous exercise can develop this. Too much water intake dilutes your total body sodium and acts as very low body sodium. Low sodium can swell the brain, cause headaches, seizures, brainstem damage, and even death. ...Read more

Dr. Bennett Machanic
4,306 Doctors shared insights

Headache (Definition)

The medical term is cephalalgia. It is a feeling of pain that can occur on either both sides or just one side of the head or neck. Headaches can be sharp, dull, or throbbing, and can radiate to different areas of the head. They typically last less than an hour but can ...Read more


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Can drinking 3 litres of water between 7am and 9am cause Headaches. Is this amount too much. Thanks?

Can drinking 3 litres of water between 7am and 9am cause Headaches. Is this amount too much. Thanks?

Too much water: Unless you are dehydrated, drinking 3 liters of water in 2 hours is too much, and can cause headaches. Water intoxication can be fatal. ...Read more

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Could a headache result from drinking too much water?

Could a headache result from drinking too much water?

Headache remedy: No, in fact water generally will help reduce headache. Too much water can cause electrolyte imbalances, but that's over 150 ounces per day. ...Read more

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Can drinking a lot of water give you headache?

Can drinking a lot of water give you headache?

Yes.: Drinking too much water can cause headache, as well as a serious condition called "water intoxication." if you drink much more plain water than you lose through sweat, urination and evaporation of exhaled air, your blood can become so dilute (hypotonic) that water moves into your cells, causing them to swell. Swelling of brain cells specifically can cause seizure coma, even death. ...Read more

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Can not drinking enough water give me a headache?

Can not drinking enough water give me a headache?

Yes.: While there many causes of headaches, one of the most common is being somewhat dehydrated. A good indicator of your hydration status is your urine. Aim to have completely clear, odorless urine. If it is dark yellow and/or smells strong, you need to drink more. Hope you feel better. ...Read more

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Started drinking water to be healthier but I find just drinking water gives me a headache why is this?

Started drinking water to be healthier but I find just drinking water gives me a headache why is this?

"Brain Freeze"?: Brain freeze from ingesting ice cold water & foods is common & multifactorial, as are headaches. Such pain can originate from the skin, fat, muscle, blood vessels or within the cranium from great venous sinuses, their tributaries, the dura & its arteries, the falx cerebri, & large arteries at base of the brain (all of which have pain fibers). Could try room temperature water & assess response. ...Read more

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I've been drinking a lot of water to lose weight so why did that give me a headache? Any idea?

I've been drinking a lot of water to lose weight so why did that give me a headache? Any idea?

Head aches: Not sure if the excess water intake caused you head ache or maybe something you stopped eating/drinking. For example, sometime, when people diet and cut out soda with caffeine, they get head aches. Caffeine may not only cause headaches, but can also be a treatment for them etc. So play detective and slowly decrease food groups as opposed to stopping them abruptly. See doc if the HA continues. ...Read more

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If you drink to much water do you get a headache from it?

If you drink to much water do you get a headache from it?

Yes: Water intoxication can cause low serum sodium, which in turn can cause cerebral edema and even seizures. Headache is a symptom of cerebral edema. If headaches persist even after you stop drinking too much water, you need to see a doctor. ...Read more

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Does water cure headaches?

Water and headaches: If dehydrated water is needed and if vomiting, diarrhea, alcohol there is dehydration. But there are a lot of other causes of headache that water is not the complete solution like trauma, infection, lyme, vascular issues, autoimmune disease, migraine. if persists >2-4 hours, associated w/ hi fever, nausea, vomiting, confusion, blurred vision, imbalance go to doc/urgent care/ER ...Read more

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Suffer headaches bad due to anxiety mainly on left but also get a cold water feeling down my left side with it?

Suffer headaches bad due to anxiety mainly on left but also get a cold water feeling down my left side with it?

Anxiety: I feel empathy for your anxiety.

At age 48, stressors of relationships, marriage, separation, divorce, parenting, work and finances can cause Anxiety with physical symptoms including headaches, and cold water feeling down the leg.

See a Psychiatrist for diagnosis and treatment including
Therapy to cope with stressors,
Breathing Relaxation,
Visual imagery,
Yoga, and
Meditation. ...Read more

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I always get a headache afer I've been out in the sun the whole day. Why does this happen? I drink plenty of water everyday!

Sunburn: You get sun burned. Wear sunscreen, use wide brim hat, long sleeve shirt (helps keep your body humid. Without shirt, or clothing you get dehydrated faster and get headache.) wear bright color clothes. There is a reason people in the sahara where those kind of clothing (thank good we have a/c). ...Read more

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Yesterday I woke up with a bad headache on the left side, most pain above my left watering eyetoday I still feel it. Can't take pills, what can I do

Yesterday I woke up with a bad headache on the left side, most pain above my left watering eyetoday I still feel it. Can't take pills, what can I do

Self care: You can try some self care things including warm compresses, hot showers, meditation, massages and green tea. I know you mentioned no pills but advil or tylenol (acetaminophen) might help. ...Read more

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Got a headache after drinking cold water. What is this?

Got a headache after drinking cold water. What is this?

Over comp.: Over compansation by your temp regulating system. Try less cold water. If taking other meds, related side effect. See pmd and discuss. May be. ...Read more

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Why do I get headaches whenever I drink certain brands of water or after exercise?

Why do I get headaches whenever I drink certain brands of water or after exercise?

Vasoconstriction: Headaches are caused by vasoconstriction of vessels in the brain. Perhaps the brand of water has a mineral or impurity, or cool liquid causes the vasoconstriction.
It is not normal to get headaches after exercise. Please see a doctor for a complete exam to make sure every thing is OK ...Read more

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I have had a lot of headaches recently despite being healthy and drinking lots of water?

I have had a lot of headaches recently despite being healthy and drinking lots of water?

MANY REASONS: Headaches can be due to dental and jaw pain referral, but also can be triggered by neck pain, thoracic outlet syndrome, and prior head injury. Migraine and tension headaches could also be considered. Unlikley that you possess intracranial mass of any kind, and more plausible that this pattern can be stopped by preventative drugs or botox. Check in with your doctor, . ...Read more

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Started taking harvoni, what are some recs over the side affect? For example more water or? Many headaches. Ty

Started taking harvoni, what are some recs over the side affect? For example more water or? Many headaches. Ty

Hepatitic C: Harvoni is an amazing new medication Ledipasvir-Sofosbuvir for the treatment of Hep C. Thus far in my practice I've put about 100 people through the treatment. Common side effects include fatigue, headache, nausea, diarrhea, and insomnia. Of these, the fatigue was reported by my patients more than any of the others. Stick with it...8 to 12 weeks and the cure rate is ~96%!!! ...Read more

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I drink 7 glasses of water a day, sometimes a get a headache, but after I drink it does go away. Could this be anything else?

I drink 7 glasses of water a day, sometimes a get a headache, but after I drink it does go away. Could this be anything else?

Water intoxication: If you drink 7 glasses of water a day, it is unlikely that you have headaches due to dehydration. Rather drinking too much water can cause swelling of the brain cells (due to low salt) and headaches. Too much water washes out the kidneys which leads to an inability to concentrate fluid properly. ...Read more

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11y/o son swallowed water at pool and had headache, now dull, about 5 hrs. Just started coughing, worried about secondary drowning?

11y/o son swallowed water at pool and had headache, now dull, about 5 hrs. Just started coughing, worried about secondary drowning?

Go to ER: Chlorine does not kill all germs instantly. There are germs today that are very tolerant to chlorine and were not known to cause human disease until recently. Once these germs get in the pool, it can take from minutes to days for chlorine to kill them. Swallowing just a little water that contains these germs can make you sick. If he aspirated water into the lungs there is a risk of pneumonia. ...Read more

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Water tastes sweet. Sweet drinks taste sour. Spotting never had this and got a headache too. Why does everything cold taste sweet? Tested not preggo

Water tastes sweet. Sweet drinks taste sour. Spotting never had this and got a headache too. Why does everything cold taste sweet? Tested not preggo

Unrelated problems: The spotting can be evaluated by an obgyn. An exam and testing for infection will be needed. A dentist should check your mouth to begin the evaluation for taste changes. Your primary care doctor should evaluate you neurologically for the taste changes and headache. ...Read more

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Could not drinking enough water before going to bed lead to headaches in the morning? Sometimes it seems that I wake up feeling fuzzy, and my latest hypothesis is that I am not drinking enough water.

Could not drinking enough water before going to bed lead to headaches in the morning? Sometimes it seems that I wake up feeling fuzzy, and my latest hypothesis is that I am not drinking enough water.

Dehydration is a: Known cause of headaches. Drink plenty of water (not just when thirsty) throughout the day.

Your urine should be clear and colorless to a light yellow in color. Very dark yellow means concentrated urine, and probably a dehydrated state.

Drinking a lot of water in the evening may result in waking up to urinate. ...Read more

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Why does lack of water cause headache?

Why does lack of water cause headache?

Dehydration: Dehydraton can serve as a stressor, triggering headaches. Serotonin is released in the face of mild dehydration, ultimately triggering the migraine driver in the brain stem. ...Read more

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Did headache cause watering eyes that won't stop?

Did headache cause watering eyes that won't stop?

Sinus headache-yes: Sinus congestion and subsequently nasal congestion may have blocked your tear drainage canals. ...Read more

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Why would Gatorade help a headache when maxalt (rizatriptan) and water wouldn't?

Why would Gatorade help a headache when maxalt (rizatriptan) and water wouldn't?

Hypoglycemia?: Gatorade has sugar and other electrolytes in it. Perhaps, you had a headache from being hypoglycemic (low blood sugar) or dehydrated. ...Read more

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Is there an explanation for extremely frequent and extremely painful headaches (i drink water regularly so not dehydration)?

Is there an explanation for extremely frequent and extremely painful headaches (i drink water regularly so not dehydration)?

Headaches and water: Check your sodium by having a physician order a blood test for it. If you drink a lot of water, and not ingesting a lot of sodium, you may have a low sodium level. Why do you think you are preventing dehydration by drinking large amounts of water? Are you having diarrhea, being exposed to a hot environment or urinating a lot? If not, you probably such drink to thirst. ...Read more

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Vertigo with extreme headaches and feelings of cold water being poured on my head and electricity feeling at times in my head..

Vertigo with extreme headaches and feelings of cold water being poured on my head and electricity feeling at times in my head..

Neurologist: The type of headaches you are getting may be migraines. These can give you these type of headaches. The symptoms are quite possible with this type of headache. The other thing that might present in this odd type fashion is a type of seizure called partial seizure.
YOu need to see your doctor and see if the doc will refer you to a neurologist. ...Read more

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What can I try to relieve a 5 day headache that nothing has helped (sleep, various pain medications, lots of water, neck massage)?

What can I try to relieve a 5 day headache that nothing has helped (sleep, various pain medications, lots of water, neck massage)?

See MD: Might be migraine or something far more serious. Sounds like you have exhausted the normal treatments. See the md soon! If necessary, go to er. Could be intracranial pressure, tumor, etc. ...Read more