Just found this site and am so relieved to know that I'm not going crazy! I took Advair for only two weeks after a poor spirometry reading at my doctor's office and had such horrible anxiousness and panic attacks that I thought I was losing my mind. Needless to say I stopped taking it. I later was told by an Allergy/Asthma specialist that there's some kind of stimulant in Advair (much like caffeine) that most likely caused the adverse reaction. I'm highly sensitive to caffeine and other stimulants. I warn anyone with this same sensitivity to discuss it with their doctor before taking Advair. I will never take it again.