I drove my car with its problems to Nashville(45 minutes or so) and back to help out the girl.
Ended up driving it at LEAST on one way with one plug wire unhooked. THAT was interesting. Soon as I got home I threw open the hood and looked and saw it unplugged. Wow..that accounts for some issues!
I then decided to check for exhaust leak like I'd been meaning to, and found the cat had rusted and broken away from the exhaust.
Possibly accounts for my numerous codes of p0171, p0300, etc.
Hoping to get it fixed ASAP.