what is wrong with my dog?!

Question
My 4 yr old rat terrier female is shaking like a leaf on a tree and is panting with her tongue out. Shes very calm, which is out of her normal behavior! Her ears are back and she is shaking constantly. Please let me know what it is that is wrong with her if you have any idea! Thank you!

Answer
Check her temp. Sometimes when they have a fever dogs will shake like this. Also check to make sure she has no injuries, tenderness etc. I would definitely have a vet check her out as soon as possible. It really sounds to me like she is in pain and I would take her in asap to find out why.
Diane