I think you should call your vet as soon as possible. Best to let him check your dog out and make sure it's nothing serious ! Call and ask !
My dog Has been sick on my bedroom floor, And he kind of moves slowly when he follows me around a lot. Help?
Go to a veterinarian. They will help your dog and tell you if there's anything wrong.
I hope I made your day a little better. I haven't been so happy, but helping others makes me happy.