 Dog's rear end shaking - what is this??!
I am having a small panic attack....
I just went home for lunch and Scout (shepherd mix, 5 months old) was hanging out at home as usual. She ate lunch, we sat around, and suddenly she got up, hunched over sort of like she was about to poop, and her rear end & legs started shaking alot in this hunched over position. She kept moving around in this position, shaking, for about 10 seconds. Then she stopped and sat down and was perfectly fine. We played fetch, then she slept, and she seems completely OK....
She has eaten normally today, and she peed & pooped outside this morning like usual....
What was that??? Has anyone ever seen anything similar? | 
