Ive Been Having Sex Every Day, 4 - To 5

ive been having sex every day, 4 - to 5 times per day during 2weeks straight with my girlfriend, we been popping pillz, sniffing coke, smoking marijuana, drinking alcohol and having sex at the same damn time. I didn't do drugz in a week and ive been loosing weight and I can't eat like i used to. im only drinking water and orange juice allday, im always tired,a little bit hot but cold at the same time. what im feeling right now is extremely weird. I thought it was HIV but my girl is clamming tht she doesn't have hiv, im list right now we been having unprotected sex. please HELP. I really don't know what's happening to me, please HELP