used to happen all the time when i first started smoking.i would be afraid i was gunna swallow my tongue,cuz i couldnt feel it and didnt know where it was so i would alwayz put my fingers in my mouth and hold my tongue,cuz i was afraid it would go down the hatch.and the same thing used to happen.i wouldnt know if i was chewing on my tongue or not,couldnt feel it