Hey, i am a boy age 23 in earlier days i used to eat a lot without any problem, but from last 2 years i am on a healthy & light diet including whey protein, BCAA's eggs, pulses, peanut butter, brown bread, groundnut etc. As i am a fitness freak so i have to take whey protein & BCAA. Now the problem starts, whenever i ate food in high qauantity or even a small food from outside vendors make me vomit & i also become lactose intolrent don't know how? Please suggest why this is happening