Hello I'm new to this forum but getting very worried as fit test in stool came back greater than 400. For the past 3 weeks been having blood in my stool. Just the last couple of days feel like I've been hit by a brick, having pain and cramps in abdomen, feeling freezing cold, extremely sick and no energy what so ever. The doctor has ordered me to have a colonoscopy and endoscopy just worried it's cancer. Has anyone got any experience of this?