I think I may have a similar problem, but I'm at the beginning of this journey. I think I was given a misdiagnosis of exercise-induced asthma -- I think it's a misdiagnosis because the albuterol inhalers do not help me and my symptoms seem to fit VCD better than EIA. For example, this article says:
Originally Posted by EdC
However, an athlete with PVCD typically identifies the neck or throat as the source of airway restriction, while the EIA sufferer usually indicates the chest as the source of tightness. In addition, wheezing, which is more closely associated with EIA, is characterized by whistling sounds resulting from the narrowing of the respiratory tract; stridor, produced at the level of the larynx, is characterized by a harsher noise, like that of sawing.which fits me to a T. It's a good article overall, although it may be old hat to you by now.
I am interested in trying to learn how to incorporate the exercises into swimming, looking at this article.
Thoughts on any of the above are welcome.