I go to the bathroom and have a bowel movement . When pushing, on the lower right side, there is pain during the straining. It is kind of one lower right side. Once I stop straining, the pain goes away. In order to complete the BM, I usually push hard with my hand onto the painful area, and I can complete th BM. I still feel a small bit of pain, but hardly any when I am pushing into the pain. What is this and why?