Hello, please for the last 3 months I am having a problem, that when I drink water, even very good one from 2 liter bottles, I feel very week, sleepness, headache and I cannot think properly for around 2 hours, then gradually I start to feel normal again. This symptoms only happen when I drink water, and it it is normal quantity like 2 or 3 grasses. What is wrong with my body that I cannot drink water without feel this reactions? I am 25 years and male. Could you help me? Thank you so much!