The vaccine gave me asthma. I never had it before, and I got it immediately after the vax. The effects are becoming milder over time, so I'm hopeful that it'll go away. At first, it was so bad, I fell down a flight of stairs because I couldn't breathe. That hurt.
But anyways... I recently discovered a new trick to shorten the episodes when they hit - open eyes wide and look as far to the edge of my vision as I can, in all directions. I have no idea why eyes and heart/lungs are connected, but they clearly are. Doing that makes that whole track of organs relax - osophagus, lungs, heart - it all opens up somewhat if I do this weird eye roll.