Thanks. His older brother is gluten intolerant and I have always suspected ds9 would be better off without it but it was just too much. I have a co-operative GP do I will ask for a referral for bloods as well. Maybe allergen prick testing too? He doesn't seem to have more than mild seasonal allergies but that doesn't mean it isn't more underneath.

Trying to get him gluten free will probably be a nightmare though.