I am 20 years old, female, 5'7'' and about 135lbs. I have a history of an irregular menstrual cycle. I last had my cycle towards the end of february and its already going to be the end of june and still nothing. Actually, for march I had really bad nose bleeds for about two weeks, bu i think it was due to a dry nose and arrid conditions. But i did lose alot of blood. I have been sexually active but come out negative for testing. I have been getting really gasy and slight diahrea for the past week. Also, I noticed that I just give off a really bad odor all around, especially down there. About the same time my periods stopped I started having alot of stress with family, school, and socially. What do you think are explanations for this?