I feel like a broken record 

have had bleeding on and off for years was told I had a fissure and put on a referral whcih took three years to come through and I was given a qfit test at hospital to do which came back positive. 
 

colonoscopy is on Tuesday but I have noticed mucas in my poo this week it is white and blood on the stool not when I wipe my anxiety is super high I have lost half a stone since I got the call as my appetite has just disappeared feel like a broken record for two weeks now but I can't shake this dread feeling 

I have had no change to my bowel habits just this bleeding for years I'm worried if it's polyps I've left them to turn cancerous I should have chased the doctors up more but I believed them when they said a fissure