Your symtoms sound exactly like mine. The pain was so bad it even hurt in my upper thighs & legs. I had a terrible time with my period for years. The pain would start a week or more before and last until a week after my period, only leaving me a few days out of the month that I wasn't hurting.
I suffered for 5-6 years like that because I just didn't want to go to a doctor and was a little afraid of a vaginal ultrasound. Then, about March of last year, the pain didn't go away, even for a week, so I had a CA125 done and a vaginal ultrasound. My CA125 was at 325 or so and I had tumors over 3" in diameter on my ovaries. Before I could find a doctor to operate (I had no insurance and no money) my CA125 was over 2000. I finally had surgery on June 9, 2008 and was told it was Stage 3 ovarian cancer and started chemo soon after. I even had interperitoneal chemo (directly in the belly via a medi-port).
I think I'm lucky because I have a wonderful doctor and hospital, but with all the cancer in my family, I should not have waited so long. I finished 6 cycles of chemo in Nov 08 and last week my CA125 was at 35 (up from 13 in Nov 08) and it scares me a little. I'll see him again in 8 weeks to see if it's in remission or if it's growing again. But, my point is don't wait . . . have that test and vaginal ultrasound done. I feel like if I had done that earlier, it may not have gotten so bad. I'm not trying to alarm anyone, but I lost my mother & sister to breast cancer and I of all people should not have waited so long.
Don't wait any longer. Schedule a thorough Gyne work up. Don't fear the docs, fear the horrible diseases the docs try to save us from. I wish you good luck. Marie