Sorry to say This looks familiar. Your pup needs to be seen by a neurologist. There are two forms of GME . One is viral , the other is Sterile. They are treated similar . We live in Louisiana and had to go to the University of Georgia for help. Vet's know very little on this disease . Yearly shots add fuel to the fire. Its crazy. We will never give ours shots again. My email is
kjb353@aol.com if you have any questions feel free to contact us. Believe me I spent hours reading and happened to meet someone on this site from Georgia who was a tremendous help.
Our thoughts and prayers are with you.