Luna21,
From what you told me, bunbun isn't eating, pooping, is crunched up, iscold and has chilly ears and is lethargic, and she's swayingside-to-side.
Bunbun doesn't feel well and has to see a rabbit savvy vet. No doubt.
For tonight, I doubt you'd feel comfortable taking her temperature, soI'd put a heating pad with a towel over it, on low, in her cage. Makesure she can move away from it if it gets warm and she can get off ofit. I'd assume that her body temperature is going down from what youdescribe.
Keep up with the Pedialyte and canned pumpkin. Give her 2 or 3 moretreatments from now until morning, and if she likes the canned pumpkin,give her as much as she'll take. I believe in a bit of NutriCal too.
Take her to the vet tomorrow, and do keep us posted. I am on baited breath waiting to hear good news about our baby girl.
-Carolyn