Very very long story short, I started using a cpap about 2 years ago, on my own without a test (I know, chastise me later, I need some help right now

All of a sudden things got worse, and the lightheadedness quite literally, never left. Everyday, all day, I am lightheaded. I have to hold the cart just to make it through the grocery store.
I went to my primary, and my BP was high. Traditionally I have always had great BP. So they put me on BP meds, that just made it all worse and made me feel REALLY sick constantly. All kinds of scary feelings like I was having a stroke. EKG, MRI, CT, etc.. all look great. Bloodwork looks fantastic. I am a big guy but young and strong, in 2018 I lost 60lbs but am still in the 300's.. that will change in the next few months.
I came off the BP meds and felt better within 24-48hrs, except this lightheaded-ness WILL NOT GO AWAY!
It was bad enough I couldn't drive until recently, but now its kind of stalled right now and I'm lightheaded all the time. It never goes away. It's not a "got up too fast" and its not vertigo, or anything other than that I am lightheaded. I know this cause I've done all kinds of crazy tests, tried to align some crystals in my ears? nothing has worked

I switched to a new Auto machine and it seemed to get a bit better but is still "stuck."
I ran my previous machine @ 10-ish pressure and that seemed to work well with a nasal pillow mask. I think my OSA is too severe for that and I was having bad leaks, so I switched to a full face mask at the same time.
I've had much better sleep and it's taking my pressure WAY higher. Everyone keeps telling me its my high BP causing the lightheaded-ness, but I really think something is rooted in my sleep because of how sudden this started. I could definitely be wrong but things aren't adding up and I've seen a bunch of specialists and have even more lined up. I'm very frustrated and this is because difficult to manage in general.
So maybe you all could tell me if this data looks good or not? I'm reviewing it with the neurologist next week.
Anyway, if you made it this far.. thank you! Here's the screenshots:
https://imgur.com/a/zFEmPpZ