Tenderness in bladder area. ache in that area and lower back painful. uti test and culture negative, no pain while urinating. obgyn ultrasound normal?

You may be dealing with pelvic congestion syndrome. Any hemorrhoids, vulvar discomfort,varicose veins,tipped uterus? Discuss with your gyn to see if it's a possibility & whether studying the ovarian veins would be worthwhile. I assume endometriosis has been ruled out. Your gyn is still best to advise you,however.

You need a good history and physical exam by a doctor Gyn or Urologist to get to the bottom of this. It cant be diagnosed in this forum.