I pulled a stomach muscle six years ago in a boxing tournament. It has never healed. I've tried everything. When I do strenuous work so that my stomach muscle hurts, it then begins to hurt when I urinate. It's a sharp pain on my right side. This has been happening for six years but only when I strain the stomach muscle. Do you have any recommendations to get this better? I went to physical rehab and they couldn't get the muscle better.