What Causes Pain In The Pelvis And Upper Legs?

Hi, I have pelvic pain and upper leg or muscle pain (in both the front and back) when I stand up from either a sitting or bending position. It seems to be worse when I get up in the morning, and I have a small amount of relief after moving my bowels. Advil and Aleve have not been helping. It almost feels like labor contractions. I ve recently had bloodwork and a urinalysis done, but everything is normal. Back in 2004 I had my rectal wall repaired as it had fallen due to childbirth back in 1972.