I dont know why but how old are you?
i guess i should have given you a little more information. thyroid problems are problems that are forever, once you have one you should be on medications for the rest of you life, i was on meds for 4 years and never got it regulated, now i can't afford any of it. >.<
however i did do some more research on my thyroid problem, and found that it can cause menstral problems in the later stages of it, but that they would become sparse, and this is obviously not the case with me. I have also checked out other posts, but nothing really that helps or is my case exactly.
more information on my periods: sometimes the bleeding is brown and gooey. I have virtually no pain with them, which is amazing considering when i was a good bit younger i had horrid craps that left me curled up in a ball on the couch crying, and had teachers send me home from school because they could tell the amount of pain i was in.
So pretty much i am having 3+ periods/month and not much pain. It is just annoying, and i know it is not normal.