I woke up because she kept jumping on and off the bed. She does this sometimes, so I just figured she was trying to get comfortable and went back to sleep. But she wouldn't stop doing it, so I started watching her more closely.
For two hours, she jumped on the bed, laid down, got up a few seconds later, jumped down, laid down, got up a few seconds later... she would not stay in one spot for more than a few seconds. She finally fell asleep - I think from exhaustion - but she didn't look very comfortable. So I took her to the vet. She needed her ear recheck anyways, and this was some really unusual behavior.