I was diagnosed with IBS when I was 15. I changed my diet habits to see if specific foods triggered my terrible cramping and that did not seem to be the case. A few months ago I noticed that the lower left side of my abdomen had a hard lump on it. I believe it is where my colon is, but I am not sure if you are supposed to be able to feel that. This lump doesn’t move and is very firm. At first I thought I may have just had to go to the bathroom or something, but it has remained the same. Does anyone know if this could be what’s causing my stomach problems? I get nauseous almost every morning and I am losing weight as well as experiencing cramping when I eat sometimes.