Sorry to hear you are still suffering. Have you had an ultrasound? An ultrasound is even better than an MRI.. and will let you know if there is any mass or hang up in the area. Are you doctors sure of the side effects or effectiveness of the medicine... as maybe some of the symptology you were experiencing might still occur on the med? Certain hormones can cause pelvic pain... which you might even be allergic to also...

have you tried herbal remedies, nutrients? EPO (gla evening primrose oil, blue or black cohosh...) these work great for all types of hormonal suffering (even for men's ache sometimes)

What does your T say... could it be stress? (IBS is connected to incorrect response to stress... I "work" very hard at trying to not react internally.. as I KNOW this is real suffering, too!)

TC, hope you find an answer sooner than later.