A member asked:

I just fainted after waking up in the night to get a glass of water. i've never fainted before, what should i do? i was dehydrated, and had gone running in the morning, and had two glasses of wine in the evening with not very much food. do i need to see a

A doctor has provided 1 answer
Dr. Heidi Fowler answered

Specializes in Psychiatry

You : You may have experienced postural hypotension. You already noted that your were dehydrated. If you had been lying flat and suddenly jumped up (like to get a glass of water in the middle of the night) that could cause gravity to pool some of your blood lower in your body. As a result you could have less blood supplying the brain. If you had a lack of oxygen with brief decrease in blood then you could faint. Recommendations: stay well hydrated- especially if you have been exercising. Roll out of bed slowly. Go from a lying to a sitting to a standing position. If it is a one time occurence and you feel well, don't see a need to go to the doctors. If the issue repeats - please talk to your doctor. Stay well.

Answered 9/26/2017

5.3k views

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