My first thought was back or neck issues. These little guys are prone to such issues and one of the first signs my mini had was shivering.

If your vet is not VERY familiar with back issues in this breed it can go un diagnoised. Because dogs, in general are so stoic they often don;t "TELL" us what hurts. That is why a vet that is familiar with this breed is so important.

If you suspect it is her back please do the following to prevent further injury

Always crate your dog whenever you suspect a back problem. It is always better to be safe then sorry. Crating will help keep the dog from further injury. The crate should be 1.5 x 2.5 the length of the dog. The dog should stay in the crate 24/7. Carry to and from potty place. Stand in one spot. Dog may only take minimal steps the harness and 6' leash allow.


Keep us updated!!

Visit
.
for some great info on this breed and their unique back issues.

Good Luck and kisses for your little one!