Why Do I Sweat Right After Drinking Water?

The massive sudden intake of the water into the stomach releases a swell of endorphins in the brain. This incredible release, being hydrated or not, is what causes the nervous system to 'flush' with blood and the overly excited central nervous system reacts by sweating for a brief time. It passes, as quickly as it comes on, and the duration is positively correlated with how sensitive your system is to sudden changes.

To avoid this, you should simply drink the same amount of water, over a longer time. Shorten the duration of 'chugging' large volumes of water, into many more sessions of less volume. P.S. - the body retains more by drinking smaller amounts more frequently, compared to volume chugging once or twice a day.

** An interesting fact....if you've been out partying, and drinking enough alcohol to become extremely drunk, in the morning, if your gut can take it, try 'chugging' a full 10-12oz water without stopping.... Not only is it VERY EASY TO DO, but it will actually make you intoxicated again!

I also used to sweat after drinking water. Not normal sweat. Like get really hot and get visibly wet water running down my face sweat. Without exercise or exertion. Was not normal. I changed my diet, became vegan. I drink a lot of smoothies full of vitamins and other nutrients, fruits and green vegetables and plant proteins. The sweats are long gone. I think it was kind of deficiency but not sure what since I changed so much.

Same here, i have had the same issue for years - thought something was wrong with me :)

I have the same question and have yet to find an answer.  I also sweat after drinking water.  
The only think I can think of is that I do not drink nearly enough water my body needs, and therefore my body sweats after I drink water (mostly around my forehead) because it can FINALLY release the water (sweat) that my body wants to rid of, but could never do so because it knows I need as much as possible as I do not have enough water in my body....so I believe it may be a sort of release to say..."OK...finally you can sweat now".  Sounds stupid...but it;s just my guess.

I agree with the above statement, I don't drink water and recently starting to exercise so ive been downing a lot of it.... I sweat at room temp not doing anything to get all the toxins out I think.