We had to rush Tasha to the nearest all-night animal hospital around 1:00AM after discovering that she had a ruptured abscess near her butt. She was bleeding and leaking pus and other yukky substances.
The doctor at the All Animals Emergency Hospital seems to think she's going to be OK, but we won't know for sure until at least 7:00 am. I don't think we'll be getting much sleep tonight.
UPDATE: She's home but she is not out of the woods. The abcess was deep and serious. We have to give her a high dose of antibiotics for the next 10 days and bring her in for a re-check in 2 days.