Absolutely! Thanks for asking
1.) I have fed him outside his enclosure twice, and once inside. I believe the reptile shop I got him feeds in a separate enclosure.
2.) The last time he ate prior to this was last Monday, 5 days before his feeding this Saturday (The regurgitated meal)
3.) Cool side is low 80s, hot side is low 90s.
I got to thinking, and after reading more threads, I think it may also be due to the mouse being bigger than he's used to. I haven't weighed any of his previous meals, but this mouse was about 12 grams, and visibly larger than his last couple of meals.
He seems alright now (I always feel better after throwing up... Do snakes feel better too?

)
He's in his hot side hide right now, but has been poking his head out and smelling around too.
I'm guessing it would be best to wait a few days before handling him?
So, because I know I've partially derailed this thread, I will relate my issue back to the topic. I'm not entirely sure if my little guy's regurg was related to handling right after feeding, or to a larger than normal meal... Or maybe it was a combination of both?
Thanks all for your responses and considerations! The help is immensely appreciated!