Went to do chores tonight and noticed that Spice (my *hopefully* bred pygmy cross doe) is shaking. its just in her back legs. its not too cold in the barn, no one else is shaking, not even the 2 week old kids. she is eating fine and moves around find as well. she has nice grass hay to eat, gets 1/2 scoop goat feed a day, has free choice minerals, baking soda and water. any ideas? and should i be worried? i can call vet in the morning if need be.