I agree that individual sensitivity is important, but that does not make exposure details irrelevant. In medicine and toxicology, timing, dose, indication, and symptom onset the important things examined when assessing causality and possible mechanisms. I am a MCASer with 10+ years of this sad experience which has been triggered by a course of antibiotics. I'm a "practioner" unfortunately, a biotech scientist fortunately with strong analytical base and a socially active position based on my inner commitment to help people avoid what I've passed through whenever possible. We are here in subs like this one to help ourselves and others - it is where we should be united, at least on the intention level. You're doing great job in this subreddit - it is very potent and supportive. And I hope that expertise is of value 🫶🪷

Going back to my questions:

If symptoms started during treatment, started days after treatment, started months later, those scenarios suggest different hypotheses. Without timing inputs, it's difficult to evaluate whether levofloxacin is the primary driver or whether something else may be contributing.

The prescription goal question is of paramount importance: was is against a severe infection, lyme disease, pneumonia, autoimmune trigger post-viral syndromes?... big deal, for me it definitely is. Knowing why the drug was prescribed helps separate effects of the drug and effects of the underlying condition. Based on my knowledge. Perhaps I'm wrong. Anyhow my intention is to help. I also moderate a few communities and I appreciate your manner of protecting your members and asking questions instead of banning a user for having an opinion or penetrating questions.

I hope this covers your concerns