I am 66 yrs and have been on Advair 150 for several years. I have experienced leg camping and some PVC's but a year ago I had routine blood work and it was so abnormal that the doctor's have checked me for every kind of cancer you can think of and every thing is ok, however, I am still under doctor's care for this. Recently I thought it might be the advair and wonder if any one else has had the problem