Thanks VC. I’m not sure whether it’s the same? My experience is more like an autonomous response (the body just takes over) and when it’s done exhaling I feel better. I’ve come across something along lines of a metabolic build up of CO2 caused by salicylates. Do you have any Salicylate issues? (Doesn’t sound like a Candida issue or others would have posted I assume).
Just out of curiosity, have you checked your urine and saliva ph?