What Is The Treatment For Pelvic And Abdominal Pain?

I am 45, female of good health with controled HTN. I am about 120lbs overweight. I have been having pelvic/abdominal pain since 2008. It gets so bad that I can't go to work. It is a sharp, crampy, spastic pain that has a gradual onset. The pain is a 10/10 at times. The duration is about a week where the worst pain is midweekly. My Labs were all normal except my WBC's were slightly elevated and my ESR was 55. I do drink beer on my days off up to 7 -8 a night. These pains come mid cycle and then I usually skip that next due cycle. My MD wants me to do a MRI of the pelvis with contrast. My pelvic exam in the office showed very tight pelvic floor muscles and uteran/ovary generalized pain.
What do you think?