Well now,
My recent experience of this!
I went to the docs with symptoms in April this year,(pooing out blood) he couldn’t find a reason but sent me for a colonoscopy just in case (said don’t worry only 3% have anything serious)
glad he did as at the colonoscopy they told me I had a tumor and it was cancerous, not a nice thing to hear!
So that was April 23, I had a CT scan 2 weeks later and they confirmed that it hadn’t spread (that was a long 2 weeks!)
Had robotic surgery at the end of May to cut out a section of my bowel and rejoin, which was incredible. Had the op Friday morning, and was home on Sunday evening no stitches, 5 holes in me all glued up they had me up and walking on the evening of the op.
I have just finished 3 months of Chemo which was harder than the op, and am waiting to see my consultant in December to see how things are looking now
My experience was better than yours it seems but I just wanted to say that I agree if you have symptoms get them checked, I am glad I did!