i did a bunch of mindfulness meditation/breathing as ell. definitely helps but i see it as a relief not a cure. my breathing or labored breathing has been a lil less intense this past week. like you i workout a lot. i dont feel it gets worse while lifting or doing cardio (like asthma). it's either extreme or mellow regardless. i do need to get my anxiety under control. im letting it rule me. even hen im breathing somewhat easier or my depression is lessened im still thinking about how long til everything flares up again. im the type that always has to know exactly whats going on. thats why i have an appt in 2 days with my psychiatrist (routine) and im gonna ask about all this. next week i see my new cardiologist and will be looking for whatever answers he can provide then next month i see my 2nd pulmonary doctor (the 1st one just totally had zero idea what to do). even if i don't get the answers im looking for im hoping to exhaust all possibilities of what it could be. ive been looking on line and come across some videos about different breathing techniques but i need to look in depth. the Buteyko method you mentioned, something called the Alexander method...im sure theres more. not sure what other avenues to explore if these dont pan out.