I had copulation 4 months before and after that there was a series of problem my period got delayed and I started suffering form loose motion and intense stomach ache and there was foul smell in private area along with discharge and itching. A doctor suggested cefolac for two times a day for 4 days and the situation improved but the pain started again after my next period and I started having pain in lower left quadrant of abdomen after which a doctor suggested to take Doxy and Metronidazole for a week but I did not take it regularly but the problem ended and started again after the subsequent period and I used to take Drotin and the problem had ended but few days back I had intercourse and again foul smell and abdomen pain has started occurring am I suffering from some sort of STD? I am taking metronidazole 400 mg and Doxy 100 mg for last 2 days but sometimes intense pain is occurring for short durations and the foul smell is increasing in private area what to do? How to treat it? I had been told by a doctor that I have been suffering from endometriosis and I have been taking Loette for last 10 days should I stop it as it seems more likely that I am suffering from some sort of STD. Please help.