Hello and thank you for posting

I am sorry to hear about the symptoms you are having. I imagine this must be a worrying time for you but try not to over think things too much until you know more.

No one here i'm afraid can tell you what is going on and it really is only the colonoscopy that can give more answers for these symptoms.

There can be many causes for symptoms and most of the time the reason is less serious than a cancer. You have tested postiive for H Pylori that in itself can cause some rather unpleasant symptoms and antibiotics can also trigger unwanted side effects, so there could be several different things making you feel the way you do.

Faecal Calprotectin measures inflammation in the bowels and so is checked by doctors for the possibility of an inflammatory bowel disease.

If and when microscopic (not visible to the naked eye) blood is found in stools of a certain level through a stool sample called the fit test (faecal immunochemical test) then people are invited for a colonoscopy ( camera passed through the back passage to look in the bowel) so that the bowel can be checked out further.

Inflammatory bowel conditions such as irritable bowel, crohn's and colitis can cause bleeding, changes to bowel habits and tummy pain and these can be picked up by a colonoscopy as well as other things. 

There is more information about having a colonoscopy and what to expect here. It isn't unusual for some tissue samples ( biopsies) to also be taken during the examination, so don't be surprised if they do this.

Hopefully you will know more soon but feel free to get back in touch if you have more questions or want to talk things through. the helpline is also open weekdays 9-5 on 0808 800 4040.

Best wishes,

Naomi