Hello mrsd,

Thank you for your comments and suggestion.

I was tested for gluten intolerance and celiac disease a few years ago, at the same time that my lactose intolerance was diagnosed, and was negative.

You do raise a very good point though because, as pointed out by my rheumatologist, malabsorption disorders often come in groups. We are concerned about my borderline levels of iron and zinc and will be doing further testing. At present I am focussing on my B12 deficiency research, as well as my vitamin D and DHA deficiencies.

Paul