I'm so worried I may have anal cancer . I've been constipated on and off for over a year now with one and off bleeding . I had a colonoscopy done in Jan 23 as the FIT test come back high . The colonoscopy showed diverticular disease and internal hemorrhoids. Since beginning of Jan this year I've had painful BM with bleeding and the pain would last all day .Gp said anal fissure but I've tried diet change and creams but still no better . I'm now currently have a feeling of a lump inside there and I'm so worried this could be anal cancer . Could anyone help ??