You have my total, total sympathy. I have really bad periods and have ben scanned for enodmetriosis and I haven't got it. Tried mefenamic acid (useless) and Tranexamic acid (also useless) and I was tried on the pil but my body really didn't take to any of them and it made me really depresssed so had to stop. Sorry to say so but the only thing that works for me is prescription only high stregth codeine and paracetamol. It really knocks you out, and you feel strange because you know the pain is still there but you can't feel it. Speak to your dodctor and just ask for painkillers! Make sure you remember to drink lots of water pre- pelvic ultrasound!