Forgive me my delay in responding....Plese read the thread at the top of the page called 'Important Links/stickies' here and also check out the Peripheral Neuropathy forum as lots of us have the combined autoimmune/neuropathy issues... see it at: http://neurotalk.psychcentral.com/forumdisplay.php?f=20

Just click on any 'blue' link and you will get a new screen/window. I myself don't have the IGa issue..just a very 'healthy' IGg issue.. that's enough thank you?

If you read prior posts in this and the PN forum, I believe you will find some others who may have the IGa specific problems...
I hope this all helps and I also hope to see you posting around soon - j