im 18 years old and i havent had my period for 5 months. i was sexually active (unprotective) before and after i missed my period, in december i went to the gyno and did a pregnacy test which came back negative. since then i have been having alot of headaches, sometimes smelling things other ppl cant (wierd) tiredness, hunger, sometimes irritating nipples, i constant feeling of being "wet" down there with a snotty clear or off color discharge everytime i got to the bathroom, and it doesnt itch or burn btw. and a uneasy feeling wenever i lay on my left side or stomach..plz help! i wonder what could be possibly goinh on ! ?