Hey again, thanks for commenting.
"I have run across one individual.."
I'd like to point out that one anecdote doesn't provide much support for any particular possibility. Many anecdotes together can sometimes provide compelling evidence for a case, but one is literally no different than none. No trend can be seen from one anecdote.
".. who uses high CBD, low THC cannabis daily. A very small amount. If they use more it causes them CHS symptoms."
Instead of using the term "CHS symptoms", since CHS doesn't exist (except perhaps in this individual you ran across), could you describe their reaction to cannabis doses above a very small amount? They vomit, I assume? What else?
"It's literally the THC."
There's no way for you to know that, and saying so is conjecture at best. Let's stick to the facts, and use logic to analyze them, so we come to the best conclusions possible.