I was treated for sleep apnea 3 times trying to get ADHD treatment.
I eventually found a dental/nasal engineer guy and his testing was more thorough than the sleep studies I undertook. I paid for his device (300 bucks or so) but in the process he gave me a lot of techniques and understanding. He diagnosed me as borderline, despite 2 sleep studies telling me it was severe and chronic. Largely through blood oxygen levels and mouth position.
I eventually found a dental/nasal engineer guy and his testing was more thorough than the sleep studies I undertook. I paid for his device (300 bucks or so) but in the process he gave me a lot of techniques and understanding. He diagnosed me as borderline, despite 2 sleep studies telling me it was severe and chronic. Largely through blood oxygen levels and mouth position.