Finished all my active treatment 6 months ago and was booked in at the start of February for a 1 year anniversary CT scan. The last couple of mornings have had blood in my stool and a sore tummy - imm...
I also had blood in my poo in August. The GP referred me to the gastroenterologist, who did a colonoscopy. It turned out to be haemorrhoids from constipation. Thank goodness. I was also thinking the worst.
Good luck. PS some cream like Anusol can help with irritation around the anal area.