Your dog stands and goes stiff all over What is wrong it lasts about 2 minutes and then she is fine like nothing has happened?

She might have had a seizure. I have a small dog that had similar symptoms and when we brought her into the vet, she had some rotten teeth that caused he so much pain that the seizures would occur. In the end, two trips to the vet to have teeth pulled each time and the seizures stopped.