To be fair, when I had really bad anxiety and panic attacks, my therapist told me I was breathing wrong (which garnered a "wtf?" look from me at the time; breathing is breathing, I thought!) Turns out I tended to breath really shallow rather than letting my diaphragm go all of the way up and down, possibly because of anxiety, thus resulting in a positive feedback loop with shallow/short breaths and anxiety. This didn't occur because fucking fatphobia though, ffs