Well, you sure seem to be in the running for the grand slam of autoimmmune conditions.
Three forums here where you might be able to get some insight into issues with prednisone and other immune modulators:
The Medications forum:
http://neurotalk.psychcentral.com/forum72.html
The Celiac/Gluten Sensitivity forum:
http://neurotalk.psychcentral.com/forum13.html
The Autoimmune Diseases forum:
http://neurotalk.psychcentral.com/fo...sprune=-1&f=44