I'm a scared 60 yr old man. In main quite fit but test just came back positive. No visible blood and stools normal colour. Just not as regular as used to be. Had bad bout of IBS in jan/ Feb. Some weird small raised spots on bum. Also November noticed very small umbilical hernia. I'm very anxious and connecting these things to the test. Ok get tired in afternoons but otherwise good energy and slight gain in weight. Should I be as scared as I am?