What happens if a dog is twitching and not moving then gets up after ten minutes of twitching?

If he was sleeping when he was twitching it was probably a doggie dream

If the dog is twitching a lot it could be a seizure.
The link below gives a good example of the types of seizures.It is not uncommon in dogs.
What causes seizures in dogs? (http://www.essortment.com/all/seizuresdogsca_rfmm.htm)