I have what I consider to be auto-immune asthma. It is now considered to be auto-immune in nature. Lots of people develop it with Lupus, Lyme, RA, etc. It was actually the first major symptom I developed. Their is also the more serious but rare, Churg Strauss which I was worried about at first but testing ruled it out for me. With all the research I have done over the year, just going over other peoples symptoms and what they go through with autoimmune disease I find ALOT suffer with asthma as well.
Do you have any other symptoms, such as muscle aches or weakness ?