CRP is a measure of inflammation and results from a protein that is released by damaged cells.
It is not specific to any one area so can be elevated wherever inflammation is present in the body…bowel, other organs, joints, etc.
If you have IBD symptoms or are sensitive to this marker without you being aware of symptoms, and you have no other obvious cause for the elevation, then you would have to look to it being related to bowel inflammation.
Faecal Calprotectin is a stool inflammatory marker that is specific to the bowel so is generally a better indicator. There is still some conjecture as to its reliability with small bowel disease but with large bowel disease is considered a very reliable marker for inflammation.
As to the reading, what is the normal reference range? I don’t live in the US so am not overly familiar with the range. Since the doc has said it is moderately elevated it would point to you having chronic inflammation present. Does this fit with how you are feeling?
Dusty. xxx