I have coeliac disease and think I might have selective IgA deficiency and would like to get tested but don't know how. I had a coeliac blood test which came back negative, then an endoscopy and biopsy which was positive. I hadn't been excluding gluten from my diet (I hadn't even suspected coeliac disease) so thought there might be a possibility of selective IgA deficiency. I've just had my annual bloods done and my gp couldn't find the blood test to select for IgA and she didnt know why I wanted to find out about IgA anyway as it doesn't change anything as I already know I have coeliac disease. The thing is i've been ill since November with 4 lots of illness one straight after another. I've had a cough/cold/sore throat & chest 3 times, I've had total laryngitis and I've also had mesenteric adenitis, all in a 2 month period. I can't help but feel like there is something wrong with my immune system other than coeliac disease but how do I find out? Would I need to be referred to an immunologist? What blood test shows IgA deficiency?
Also my 3 children have been blood tested for coeliac disease and I suspected their results would come back negative which they did. However if I do have IgA deficiency and if my children also have it then the standard coeliac blood test would not work for them! Is this in itself a good enough reason to insist I find out whether or not I have IgA deficiency? I think there might be a reluctance from my gp to pursue this for me possibly due to costs to the NHS... I'm fed up of feeling ill constantly it's exhausting me
I would be grateful for any advice or info xx