Ball Python regurgitated 2 days after eating, and is barely responding

[Laughing Fish]

Greetings!

My female ball python, who is about 6 years old, regurgitated for the first time since I got her. She had gone a decent amount of time since her last meal (approximately 4 months), but this seemed rather normal for her as she has done this before. Normally I wait for her to become more active, as she tends to come out of her cave more and start moving around at night when she is hungry. But this time she didn't seem to do that. Since months had passed, I decided to try and feed her anyway, and she immediately coiled around the rat and ate it when offered the chance (so I think I may have gone too long, but she normally is picky and won't eat until she is good and ready). At this point everything seemed mostly normal, she ate a defrosted frozen rat of the same size from the same seller as normal. She has had the same lighting setup for years and has done fine with it, and still has clean scales/eyes/nose/etc. It's a little colder now given that it's winter (80 degree ambient temp), but it's my understanding that her heating is fine (if 80 is too low/high for winter, please correct me). Basically what I am saying is, nothing has changed (that I know of) from what has been keeping her alive and healthy for years now.

Everything seemed normal, but today (2 days after her feeding) she regurgitated the rat. I noticed quickly as I smelled a horrible stench, and looked over to see the half digested rat in front of her with her jaws unhinged. I promptly removed the rat and all shavings from the area, and cleaned her water supply and the hide box she was in front of. While doing so though, she hardly even responded. I touched her to move her away from the shavings, but unlike normal she didn't curl into a ball or even react to my touch. When I touched her closer to her head, she tucked her head under her body, but her main body remained completely stiff. After 15 mins or so, she finally moved again and went into her hide-box. I didn't see her move, but she must be a little more flexible again as she is obviously too long to fit completely into her hide box without curling. So maybe she was just too exhausted from regurgitation to move without a break first? As I said, I checked on her right away so it had just happened.

Is this stiffness and lack of awareness normal after regurgitation? What should I be doing next? When should I feed her again? I have had her for years, but she has always been pretty healthy and hasn't had any health issues at all in like 4 years (and even that was just her getting aggressive due to needing to switch from mice to rats) , so I am completely out of my element here.

Thanks for any help,
-Laughing Fish