I have a history of IBS, I have also had polyps removed in the past. Both of my grandfathers had colon cancer and one of them was Jewish.For several months I have been very gassy and bloated, I noticed quite a moderate amount of blood in my stool a couple weeks ago. I have noticed pus several times. Lately I feel very exhausted and am having some moderate to sever lower back pain. I have not been to my GI doc in several years. My stomach cramps quite a bit. The back pain is what is throwing me off it is more to the right. Any suggestions?