I gave her the next round of her antibiotics today. I'm glad I'm only afraid of needles going into me and not other creatures!! She was again way more well-behaved than I'd expect from your average chameleon.
She seems to already have better grip strength in her back legs and tail. The dark color has gone down/gotten paler during the day now. She's still eating and drinking normally. Maybe she can lay those eggs and get through this without surgery!! She's still getting some extra liquid calcium with her bugs and doesn't really seem in much pain, but I'm still following the vet's instructions of giving her the low dosage pain meds.
She hasn't been closing her eyes at all during the day so I'm not giving up hope on her pulling through this.