I have been dating this guy now for almost 2yrs and every since then I have had this really bad odor during sex. Ive been to my dr. and they seem to keep telling me that I need to drink more water, but I dont think that that is the case because I've never drink alot of water and never had this problem before with anyone else. What can it be, can I be allergic to him or what??? it is very embarrassing.Someone help please.....