Super concerned

All the periods I’ve had have been very painful, cramps that last the first 2-3 days and won’t let me move anywhere and make me cry, nausea, dizziness, lots of cold sweats and almost fainting, bad back pain and an unbearable almost stinging like pelvic pain. I talked to my doctor a long ass time ago and he basically said that since it only happens once a month, I should just suck it up. I’ve had to be taken to the ER multiple times for the pain. I have an appointment w a gyn next month but I really can’t wait any longer. Is this normal? I’m tired of always having to miss school and work bc of it.