Thanks Cara.

Would visualisation of the bowel during colonoscopy detect problems/abnormalities as far as CD goes IF they existed? That would be the closest I've ever had to investigations of the intestinal tract.

I haven't had IgG or IgA done at this point. I have had no specific/long lasting history of GI problems - just occassional discomfort like everyone else on the planet probably experiences from time to time.

I am just trying to eliminate causes for this PN as the doctors seeem to have given up!