My husband’s fit result came back as 23.8 and he had all the symptoms of bowel cancer. He was referred for an urgent colonoscopy 2ww (suspected cancer). We was terrified waiting his colonoscopy appointment but after the procedure was done his results came back as haemorrhoids and also mild colitis. Please don’t automatically think bowel cancer (easy said than done I know) but we was convinced that it was that! I’m only writing this post to hopefully ease someone’s mind that is going through the same thing or has came across this post. 
I wish you all the very best xx