I just got home from the doctor. Been feeling horrible since last Tuesday night and today I was short of breath and coughing horribly and my chest was tight and I just felt awful. I had asthma when I was a child but I haven't had any problems in years. I've had cats for almost a year now and been fine. When I went to see the doctor he said my lung function was at 60% of normal and that I was having a flare up of asthma and bronchitis. He asked me if I had been exposed to anything different lately and the only thing I could think of was that last Tuesday I was exposed to my patient's new dog (I work as a home health nurse). So my question is, is it possible to be allergic to dogs only and not cats?