I have been having lower abdomen cramping, mid abdomen tightening and pressure near my tailbone for about two months now? it comes and goes, sometimes sticking around for a week then giving me 3-4 days relief. I have had several urine tests. They both came back with no bacteria. I have seen two doctors and they both think I need to see a urologist but my gut is telling me it doesn't have anything to do with my bladder. I had a hysterectomy 8 years ago taking out my uterus leaving my ovaries and I had a clean colonoscopy 1 1/2 years ago. I am 47 and do feel as if I have started pre menopause. What do you think?