I have bowl leakage now for several years and my doctor is having a issue with finding out what the cause is. I have had stool tests, blood tests (several times) and STD test but none of these tests show that anything is wrong. After having a bowel movement, usually in a couple of hours later when I get walking or get warm I start to leak and need to clean myself. It seems that after I take a shower and do a really good cleaning I dont seemed to have the leak issue. Its only after i have a bowel movement. Now after several years of this issue I have started to have severe pain in my lower back on both sides. The pain is more severe when I'm laying down on my back. Please help.