We have a senior (14 years old) toy fox terrier. For 1 week, she has been waking up in the middle of the night SCREAMING. She shakes, pants, and looks wild eyed for a minute. She'll let us pick her up and loses the shocked look, but still shakes. When we examine her to see where she might be hurt, nothing seems to bother her: legs, stomach, back, ears etc. She isn't showing any signs of seizure either such as foaming at mouth.
During the day, she's fine. She's eating well and no change in drinking or bathroom habits.
We have a vet appt, but not until Saturday! Can anyone give us an idea of what could be going on?


