Unsteadiness or Trouble Performing Regular Movements
Don’t ignore your dog if they begin to stumble or move abnormally. These alterations may indicate a serious problem. A limp could be the result of a minor ailment, such as a painful foot, but balance issues could indicate a major brain or nerve injury.

Therefore, you should take your dog to the vet as soon as possible if they seem to be having trouble walking straight. Ignorance can lead to worse problems that are more difficult to treat. Thus, take your dog to the vet as soon as possible if they begin to move awkwardly or steadily, as if they were walking on a tightrope.
