I've been on opiates after spine surgery, I can't stand them.
I really dislike most opiates - I just don't like how I they make me feel. There's one, I think it's Demerol, that I really enjoyed. I had some left over after my pain went away and started popping them for fun. That being said, I only got those once and mostly get morphine or percocets which suppresses breathing, which I dislike. Which leads me to:
...waking up suddenly from not having my autonomous breathing working which really scares the shit out of me...
That sounds a lot like sleep apnea, which is treatable, if it persists. It really sucks, I can sympathize. I have machine that breathes for me at night. It pumps air down my gullet with positive air pressure and keeps the airways open. I wouldn't want to sleep without it. Just letting you know, maybe it's news you can use.