I believe you may benefit from physical therapy. I am a physical therapist assistant and deal with patients with your problem on a regular basis. I have seen this problem in various age groups and there is no reason why you have to suffer from this agonizing condition. This may have occurred when you were pregnant which is quite common actually. I would seek out another doctor who believes in physical therapy and obtain an order for an evaluation and treatment. This could involve a number of ways to treat with exercise, positioning, pain modalities, traction, the list goes on and on. There is hope for people in your situation and I hope this message will help you to find a proper treatment. Good Luck !