Bowel Cancer - waiting for FIT test results but thinking the worst. Has anyone had the same symptoms and it wasn't cancer?

Hi. I’m new here I am absolutely petrified. The past three weeks my bowel movements have been different, to then I ordered my own FIT test of Amazon which did show a positive reading. I hadn’t noticed any blood in my poo before then as never really checked. However today and yesterday I have seen blood mixed in with my stool, I have awful pains on my left hand side sort of like a stitch feeling and lower back pain. As well as severely bloated especially after eating and needing to go toilet more frequently. I have been to the doctors and they have sent off my FIT test so now it’s just a waiting game. I am thinking the absolute worst case scenario. Has anyone else had the same symptoms and it wasn’t cancer. :-( Yes I’ve been googling and TIkTok which I really know isn’t helping but I just can’t help it. Many thanks