Is it possible for hay fever to cause havoc with ones playing? I ask because over the last week my playing has gone south. I do suffer from hay ,at the moment the affect seems to make my lips feel dry, and slightly puffy. the problem is although my sound is still good in the low register, but as I ascend my lips seem to respond less and less until I loose the sound around the top of the stave. For the last few days I've been playing simple melodies with as full a sound as I can. Any experience is welcome. I don't want to make excuses for bad habits but I have worked very hard over the past few years to use my air as efficiently as I can. I usually play for around 3 hours a day, covering all the bases as well as tons of easy tunes, (thanks to a suggestion of Rowuk's awhile back). Also I am not having endurance issues. Could antihistamine also be a problem.