If the GP says that she has an ear infection then that is the diagnosis.
Cold skin, goose pimples and shivering is the body controlling the temperature and is normal response.
Don't wrap her up otherwise she will loose more fluid, but don't cold sponge her either.sponge her either.
<<<Also her breathing is quite rapid and shallow, not all the time though>>>
Watch this and if it gets more pronounced and frequent then call the on call doctor.
If she has had diarrhea prior to the ear infection make sure she is well hydrated.
Keep us informed.