Hello Dr, I have been a pro singer and musician for about 35yrs,and stopped smoking about 13 weeks ago , my vocal chords are not a problem as I had lessons years ago , trained singers will use all of what we call the mask for resonance ,, as in behind the nose , which is making me sound like ,Im snoring and singing at the same time,air that is reaching this area also feels restricted , I await your reply many thanks drew.