History Of Hysterectomy And Retrocele Repair. Having Lower Back Pain. Any Suggestions?

I had a hysterectomy 3 1/2 ago on july 15. my ovaries were not removed. I also had a retrocele repair. All went well with exception of existing lower back pain. I had a disc repair on my back approx. 18 years ago. I am 48 years old. I weigh 203 lbs. I have lost 60 lbs with exercise and diet over the past year. I woke it slight lower back pain immediately after surgery. my back "bothers" ey from time to time but usually the pain goes away with in one week if I rest it. however, the pain has not gotten better since surgery. It has gotten slightly worse. It hurts exactly where I had surgery. lower left side. I have difficultly moving from sitting to standing position, turning in bed, walking long distances. I have been swimming and walking slowly but not gone back to yoga practice. Can my surgery, the positioning, procedure, inactivity/ have affected my back? any suggestions? I am anxious to get back to active lifestyle and weight loss but the pain is standing in my way. The pain feels like bone on bone rubbing with no cushion and also a sharp pain when I attempt to straighten up. I appreciate your input. do you suggest I see an orthopiedaic