Hi after blood tests at my GP for extreme tiredness my results are back with unexplained iron deficiency anemia my level was at 2. I was then asked to do a stool sample twice which both came back as positive 97 and 100. After this I was asked to do a fit test which came back positive as well. I went for my colonoscopy yesterday and they didn't find anything, at all not a thing, and don't get me wrong I am so relieved but I'm also more worried incase something was missed I can't understand why I have the IDA and all the other tests have been positive and nothing at all was found has anyone else experienced this at all ?