Couple of things to address here...

One, not all sleep apnea patients snore. 20% do not snore

Second, I am not sure what your experience has to do with people that DO have sleep apnea? If you are correct and you do NOT have chronic sleep apnea, then it makes sense you would notice clearly on the nights you did. For someone who has suffered from it for years (or even their whole life), they aren't going to have anything to compare it to. They don't 'feel way more tired and exhausted' then normal because THIS IS THEIR NORMAL. If everything feels the same as it always feels, why would they assume it was sleep apnea?

Just because you experience something a particular way doesn't mean everyone does