I get this sharp tearing pain when getting out of a chair or getting out of the car the wrong way. Kind of over stretching motion. This pain can feel like a 10 on a scale of 1 to 10. It usually lasts for about 15 seconds and then I have to be real careful on how i walk or get out of a chair or carfor a couple of days. After a couple of days it goes away .There is no bleeding. My GP has done 3 stool samples for blood and nothing. This went away as usual and I left it alone as usual till the next time. Of course this just happened again a few days ago. Again I am doing blood in the stool tests again. My doctor doesn't think this is Prostate related. I would appreciate some advice.

Thanks