Has your child ever gulped like he is trying to belch?

Have they gulped so long and hard that they have trouble breathing after awhile?
My son has to point of changing colour and gasping for breath.
This is the one vocal tic I would love to find a way to turn off.

It is like watching your child drown on air and not being able to help.

I've gone so far as to get him to try to breath in a paper bag (lunch bags are perfect for small faces.) It seems to help him breath easier and slow down the tic.

This one really frightens him.