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Doctor insights on: What Causes The Body To Feel Weak Even When You Eat And Drink Plenty Of Water

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Dr. Walter Husar
77 doctors shared insights

Generalized Weakness (Definition)

Generalized weakness refers to weakness in multiple muscle groups. In other words, arms, legs, neck, etc. There is a feeling of weakness 'all over.' Stems from a wide variety of disorders and diseases, from viral ...Read more


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I eat & drink my daily water, however, why is it that being in the sun..even shortly..makes me feel weak and like I need to eat again. Any suggestion?

I eat & drink my daily water, however, why is it that being in the sun..even shortly..makes me feel weak and like I need to eat again.  Any suggestion?

Check for...: I would like to have more information about the rest of your symptoms but of course you have limited space here to describe those. However, one thought is low blood sugar levels. It might be plausible to think your symptoms could be related to this problem. Make sure you eat small frequent meals and less sugary products. If symptoms persist visit your doctor for evaluation and diagnosis. ...Read more

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When exercising or doing yard work i get lightheaded and feel weak what could it be? Happens everytime and im drinking water

When exercising or doing yard work i get lightheaded and feel weak what could it be? Happens everytime and im drinking water

Be seen: I would definitely be seen. Basically, when you are going through a self induced "stress test" you become light headed. This is sometimes the presenting symptom for a cardiac problem. That is not to say that you have a heart problem, but rather you should be seen to have this ruled out. ...Read more

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Lying down on the couch,got up for barley water,chest suddenly tightens when drinking,suddenly I feel weak as well as heating up.Last for just a sec.

Lying down on the couch,got up for barley water,chest suddenly tightens when drinking,suddenly I feel weak as well as heating up.Last for just a sec.

Uncertain may be eso: I cant tell for sure but one thing to consider is an esophageal problem. You can discuss with your physician and if neessary see a gastroenterologist. ...Read more

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Its been 13 days since my weight loss surgeryand i still feel weak i can barely get out of bed i only drink water gatorade an apple sauce is this norm?

Its been 13 days since my weight loss surgeryand i still feel weak i can barely get out of bed i only drink water gatorade an apple sauce is this norm?

Post Op Complication: No. This is not normal. Please sign off of this application and call your surgeon. The surgeon would have given you specific post operative instructions and when you need help. This is not normal. Please get some advice from the surgeon who did the surgery. This is how they monitor post operative complications. ...Read more

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Knees feel weak and like jello after throwing up 7 times last night. I'm not throwing up anymore and am drinking fluids. Cause?

Knees feel weak and like jello after throwing up 7 times last night. I'm not throwing up anymore and am drinking fluids. Cause?

Not positive - maybe: Gastroenteritis. See you are a binge eater- were you overextended when you began vomiting. Start with clear liquid like water, soda that is clear, or sports hydration drinks. Sip often to prevent dehydration. Work up to solids with bland foods like bananas, rice, applesauce, toast, gelatin, or chicken. Avoid alcohol, nicotine, caffeine, dairy ; high fat foods. Rest. ...Read more

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Why do my legs feel weak when i drink wine?

Why do my legs feel weak when i drink wine?

A lot of wine?: Are we drinking a lot of wine. If so, you might be drunk. Or the alcohol is inhibiting your anti-diuretic hormone, causing a build up of electrolytes (sodium, potassium, calcium, etc.). Wherever there is a lot of electrolytes your body will balance this imbalance out by brining in a lot of water. ...Read more

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Ever since hospital visits for IV fluid, I now depend on Gatorade, low sugar version, for hydration. If I don't drink Gatorade for a few days I start to feel weak and dizzy. What's wrong? Hyponatrema?

Ever since hospital visits for IV fluid, I now depend on Gatorade, low sugar version, for hydration. If I don't drink Gatorade for a few days I start to feel weak and dizzy. What's wrong? Hyponatrema?

May need more tests: Sounds like you are prone to low blood pressure related to dehydration. Part of the remedy is adequate fluid intake but if you are unable to hold on to the fluids it will not help. You might need to add a little more salt in your diet. Weak leg veins can also contribute. Nevertheless there are some endocrine conditions and nervous system issues that can contribute - see MD if persists. Good luck! ...Read more

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23 wks preg/ twin boys. Dull pain in my shoulders and the farther down it goes on my arms the worse the pain. Arms also feel weak. Been drinking fine.

23 wks preg/ twin boys. Dull pain in my shoulders and the farther down it goes on my arms the worse the pain. Arms also feel weak. Been drinking fine.

See neurologist: The pain in shoulder and going to arm ,along with weakness i in arms ,it may be pinching of nerves .Better see the neurologist and get checked ,investigated also treated .hope you feel better . ...Read more

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Why does drinking coffee make me feel weak? I feel fatigue, and on the verge of collapsing. Im 18 and a female, and on Depo-Provera provera (medroxyprogesterone). Help?

Why does drinking coffee make me feel weak? I feel fatigue, and on the verge of collapsing. Im 18 and a female, and on Depo-Provera provera (medroxyprogesterone). Help?

Other causes : If you feel that coffee makes you feel bad then don't drink it. I doubt that is the cause though. You should schedule a visit with a primary care doctor for a full evaluation. Thyroid and anemia testing as well as a full examination should be done. ...Read more

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I've been getting really bad stomach pains after eating our drinking any thing also i've had bad head aches and light headed and recently I just feel weak any ideal what it could?

I've been getting really bad stomach pains after eating our drinking any thing also i've had bad head aches and light headed and recently I just feel weak any ideal what it could?

Ulcers, gallstones: Abdominal pain associated with food is concerning for gastric/duodenal ulcers and/or gallstone trouble. Panreatitis is also a possibility. If u have not been able to eat/drink, u could be dehydrated and thus headaches/dizziness etc..Significant irritable bowel syndrome can do same, but usually this is a long-persistent issue. Pepcid/prilosec may help. I would consult doc. Good luck. ...Read more

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I weighed 125 3 months ago and now i weigh180. My weight just continues to rise i drink plenty of water and eat smart. Could IBS or anxiety cause this?

I weighed 125 3 months ago and now i weigh180. My weight just continues to rise i drink plenty of water and eat smart. Could IBS or anxiety cause this?

Weight gain: If you are watching your portions and exercising 5 times per week for at least 30 minutes. You should not gain so much weight so quickly. See your doctor to rule out hypothyroidism or PCO - polycystic ovarian syndrome. Anxiety and sleep disruption can cause your cortisol level to rise and potentially cause weight gain, but that amount is dramatic, so be sure to get a full workup. ...Read more