Like Kimberli, I also have lower back pain and thigh pain. My symptoms are worst the week before my period and the day my period starts. I usually feel a little better after I get up and walk around or take my prescription anti-inflammatory. My symptoms have improved with regular exercise, pelvic floor therapy, and sports physical therapy. During or around my period, my prescription anti-inflammatory also helps a lot. Have you talked to your doctor about how to manage your symptoms? - Keri (endometriosis.net team member)