I said it's a sign, that there's a correlation, not that one causes the other. It's one of the questions that doctors will ask when diagnosing a sleep disorder, there are others. By itself, it's meaningless. It might just mean you've been in the military.

If you want to impress people by pulling out big words, at least pull them out in appropriate situations.

No need to be condescending. I prefixed my post with "I think" because I was thought, but wasn't sure, that you were implying causation. Specifically, you used the word "if", whereas other wordings would have been more neutral.