So, just as a point of information and not to try to push you into anything, but the thing that rally totally cured my hellacious cramps was getting a Mirena IUD. Thing is practically miraculous. Now kicking myself for not getting one years earlier. (and the reason I didn't was that I was terrified of the insertion process, but I found a gyn who would do it with a local anesthetic on my cervix and with that it was actually totally bearable... though I did still take the afternoon off work to sit with a warm cup of tea and watch Law & Order reruns. Because I could.)