Thank you for being there. I am 70 and fairly active with low=level high blood pressure and not much else major wrong with me. Two days ago I began having pain in my lower left abdomen, which is like an ache, not like a stabbing or prickly pain. It s worse when I try to have a bowel movement, which I have, however, been having. So I m not stopped up in that way. It doesn t get worse when I exercise with a rowing machine or recombinant bike, but sometimes I notice it when I stand up or sit down. I m concerned that I might have something wrong in my bowels. Sometimes, I feel it near my belly button. I m also not as energetic as normal.