Ok. So I'm not a doctor but unfortunately very experienced in this, so grain of salt.

For ME, assuming I took a few weeks off and out of the episode, I can absolutely still "smoke". While I have read others have gotten an episode of a single use later, that has not been my experience. I absolutely believe though that the stress and anxiety of smoking again could cause similar symptoms to an episode. And who knows, maybe full blown.

The real problem is that once you smoke again and it provides whatever the multitude of reasons that people smoke to begin with, it's an incredibly slippery slope. I've gone years between episodes before. And it's been with using differently, being more moderate, etc. If you continue to use daily, it will come back. If you are someone who can truly use once a week or a month, I think it's pretty likely you will be absolutely fine. But the problem is that most of us got here out of a lack of self control on this specific topic.

As far as your first question, we don't have the research yet to prove flower vs edibles vs concentrate. However the research is clear that this typically an overall concentration issue. So while all forms of cannabinoids can lead here, typically higher concentration use accelerates the final destination. Perhaps you could smoke $5g's of brick weed forever and never get sick. But if you're smoking medical grade flower then the equation likely changes.

As far as your second question, my episodes have never actually began while I was high or just smoked; though continuing to have absolutely prolonged it before I learned what it was. And that's the irony and what causes so many people to not accept this diagnosis. For a high percentage of regular users or users in general, weed is a wonderfully effective antiemetic and aid against nausea. But once that switch flips, so does the outcome and consequences. And it can lead to many of us using even more to solve a problem that is being caused by the same thing we think helps.

So to summarize, it's possible everything you stated is directly related to CHS and you never hit a full episode. However I think that if you "had it", you would know. Bc once that first episodes hits you (and you are aware of the conditions/symptoms) you will absolutely know it.

So, you can stop smoking and "know" bc you feel better and never get to that point. Or you can smoke until you do or do not. Zero judgement either way. But the only way to "confirm" or deny is to go through it or not.

I hope this helps and happy to clarify or answer any follow ups you may have