Holly was exhausted last night because she'd not been able to get comfortable and doze during the day. We took her bed into our room so we could keep an eye on her. After a while she decided to get onto the bottom of our bed and sleep between us. Eventually she got comfortable and fell asleep, which was probably the best thing she could do.
This morning the diarrhea seems to have stopped, possibly because she had nothing to eat yesterday. There's a little bit of a spark in her eyes but not a lot of energy. I'll take her to the vet at 1030 to see what they think.