Hi Yvonne,
The only sign l had was loose bowels nothing major just thought it was something l ate. Working in the garden had to rush to toilet stood up pan full of blood water made it look worse called for ambulance had all the normal tests in a&e.
Suspected lump in anus this was during start of covid they found a bed had mri scan next day confirmed tumor within two weeks had colonoscopy result anus cancer stage2/3 you know the rest. I would suggest to have a mri scan or ct imaging scan to put your mind at ease. I found nobody knows better than yourself when it comes to your body. My two yearly stoll test showed nothing prior to my diagnosis. I'm non smoker/drinker since 2010 vasculitus diagnosed spent two month's in hospital fighting for my life kidneys shutting down had dialysis for 2 month's been clear now 15 years. I wish you the very best in your fight insist on a scan don't take no for an answer.
God bless Kenneth x