I just thought that I would post a remedy which worked IMMEDIATELY for my hubby.
Although the water was to have been mineral, I heated up some regular water to very warm and added three tablespoons of raw, unheated, unfiltered honey (it's very creamy looking). The problem stopped immediately!!
The diaphragm is the problem -- we don't know if they occurred because he tends to slouch over in front of his computer -- on it a LOT!