Hi Nemo,
u say:: I’ve told my doc, anxiety comes from having shortness of breath, not the other way around. Although, I must say for me, that all my health issue makes me anxious."
Well the 1st, and hopefully the last, anxiety attack (according to the doctor, whom I met after I was scared of being unable to breathe, said, "all what u r telling me looks like an anxiety attack. That is the doctor believes shortness of breath happened Because I'd been having some serious anxiety issues, 'What? Me anxiety attack? I'm retired, only have to worry about myself, and in reasonable health' I had, I thought. was AFTER I'd shortness of breath. Now, I became anxious After as normal breathing is crucial for humans, so in that sense I was right too. But the Reason why it happened was already percolating: I must be fretting about hard about something. I realized, the young doctor was probably right: I was sort of demoralised badly after spending about five full-time years in researching, writing editing and sending letters to potential non-fiction book agents, Without getting even an offer to look at it (Overweight or Underalive?) So while I did take some meds to get me thru the breath-stopping scare, I never had to use it as I began to accept that No One will even know the name of your book. I found philosopher Nietzsche had a similar problem, now there is an Industry about that brilliant person devoted to his way of looking at human troubles and questions.
I still believe my work distills health issues in ways that are novel, free. and can be implemented by practically Everyone to be in reasonable good health. There is on more academic, Patrick Hill of washington State Univ at St, Louis who has similar stance: To lose weight Stop New Year Resolutions, Find Purpose Instead. That is, health is a Tool to serve a Purposeful Life -- money, success, popularity/fame are secondary

Hope it helps