I am almost 18, and I'm experience a strong foul fishy smell while I'm on my period. I'm still a virgin, so i know its not a STD, and the odor is so strong that when i'm on my period, other students around me smell it(they often point out a fishy foul smell, but i don't say anything about it). I think it may be a yeast infection, since I believe that I've been fighting a yeast infection, but no doctor has confirmed it because they refused to any other tests except a urine test, and they claim everything in my urine is fine except for some blood(which they said was because of my period, but I had my period about two weeks prior, and my period wasn't supposed to come for another week and a half). I do douche, usually during my period, and it started off every few days, then it became every other day, and now every day, and I still can't get the smell to go away. I am on the birth control patch(Orthoevera), which helps me with my periods because before I started it, I would have my periods every 2-3 months and it would last for about a week and a half,with very heavy bleeding, and the same smell. About a year or two ago I had an ultra sound done to see if I had an Ovarian cyst, since they tend to run through my family, and it turned out I didn't. I don't use tampons, and when I'm at school, I change my pad every 3-4 hours(before school starts, during lunch and when I get home) even though they are no where being full, I still change them, and when I'm at home, I usually change it about 6-7 hours. I don't do any sports(except for the walk to the store), and I'm not obese.
Can someone please tell me what's going on?