Thanks.  I never would have dreamed this would take so much research!

https://en.wikipedia.org/wiki/Fibrin_glue From what I can tell, all ingredients seem to be of animal origin. The article does indicate the exact composition varies from manufacturer to manufacturer so to get a more precise answer you would likely need to find out who manufactured the fibrin in question and contact them.

Perhaps a silly question, but does fibrin glue, often used in surgery, contain gluten?  I've searched and searched and cannot find an answer.  Thanks, Tammie 

https://www.webmd.com/a-to-z-guides/immunoglobulin-test https://labs.selfdecode.com/blog/high-iga/ I think for total IGA to be elevated to the point of being out of normal range there would need to be some chronic inflammation or infection happening, not just a short term event. As I said, I would visit with your doctor over this and I would ask to get that checked again in the near future after your back pain and cold have been resolved for a time.

@knitty kitty Hi there, All my other bloods were within normal limits, though my iron has always been just a couple from being below range. Physio thought I had Ehlers-danlos syndrome, she sent a letter to my doctor but doctor said i don't have it. I've only had stomach issues for 1.5 years. About 4 years ago I lost a tonne of weight (I did go through a really traumatic experience at that time which I got c-ptsd from) then 2.5 years ago I put all the weight back on plus 14kg and all within 6 weeks. I went up 3 clothing sizes. Bloat up like I'm  months pregnant. Pins and needles, aching joints and muscles, major forgetfulness and brain fog. Only get about 5 hrs sleep, urinate every hour day or night. Nausea and bad belly pain and rashes. No diarrhea though. It all just seemed to come out of no where. It's crazy and I'm getting no answers. Biopsy getting done it 2 days.