*LONG BUT PLEASE READ*

hi so basically im 17, got my period at 12. my first few periods were fine (around 5 days, regular flow, tolerable cramps, etc) and then all of a sudden they got to be so painful i couldnt function. i dealt with HORRIBLE cramps, back pains, waterfall like bleeding for close to two weeks, nausea, and more for about three years. my mom would always try and take care of me but kept telling me as i get older it'll lessen & such. then i thought i had found heaven when i finally went to see a gyno & got prescribed birth control that made it so i only got my period every 3 months. the first two periods were AMAZING. short, sweet, and to the point. then my third one was like my old ones, only that pain & intensity lasted two months. i thought i just maybe took the pills too far apart or something but then the next few months i was taking it the same time down to the minute practically. didnt get my period for 4 months instead of 3 & then it lasted for another two months until i finally just stopped taking it. once i got off of it the periods were still so painful & heavy, but they were at least more regular. then they started acting up again and i had one that lasted for two months but the first day was the most intense pain i have ever felt in my life. i was bleeding through super plus tampons in under 10 minutes each. i went to urgent care scared i was hemorrhaging or something and they found nothing wrong with me, without taking an ultrasound ,(just gave me heavy painkiller prescriptions). over the next few days it slowed down & the painkillers helped but it still last forever. i got back onto BC after that, but a month by month one. by the second week i was having crazy bleeding again which lasted another 2 & a half months. i took myself off of i and then it finally stopped but then i didnt get my period for another two months, up until today. it is similar to my worst one with excruciating pain, waterfall like bleeding, & HUGE clots coming out a ton. i dont know what to try anymore. i cant continuously be on freaking opioids to deal with my pain and i legit can not function. nobody believes me when i say something is wrong and my doctors push it off as just being a teenage hormone thing. i dont know what to do. i can barely move, let alone work and do the things i need to do. im sorry its so long im just at a total loss.