do any of these symptoms sound like what is going on?
Granulomatous Meningoencephalomyelitis (GME)
also has your dog had any vaccinations prior to this occuring if so how long before?
I think this little one could have had gme as well due to the pain and sudden turn this is why i think you should see a neurologist immediately
http://www.yorkietalk.com/forums/sic...help-us-5.html