I have all four. Before my food allergies were discovered and I was diagnosed with celiac, controlling my asthma was difficult.
Once we found out which foods affected my breathing and I eliminated them, I was better. Then when celiac was finally diagnosed, some 20 years after I asked my primary about it, breathing became easier. I still have to be very careful with chemical triggers, but my "escape time" is a few minutes longer.
It's very difficult to manage multiple body systems yet I manage the best I can.
My primary teases me that I probably have another autoimmune disease but who knows if it's been documented yet. We don't know if the hypersensitive nerves are inherent to me or a result of all the meds.
Just call me my own textbook because I certainly don't fit the published ones.