NEED HELP URGENTLY

I've been in and out of hospital due to crippling abdomen pains that get worse around my period, which I honestly thought was endometriosis but nothing showed up on my lap in June, I've had a scan on my lower abdomen which showed no cysts. They are trying to blame it on "over exaggerating periods" god I wish I made these up:( can anyone suggest anything I can do? As will be discharged tomorrow and back to pain xx