Hi. I also am debating whether or not to get the 2nd booster, as it appears my SRSN either began or was exaserbated by the COVID 19 vaccines. I had moderna for 3 shots.
You mention that your symptoms may "flare" after a vaccine. That indicates that they also abate. Is that your experience? I am more willing to have the bivalent if it may not cause permanent damage. So far my symptoms have advanced on the whole, with the odd day of some relief, but not what I would call a flare. I am hopeful though!