Dogs experiencing normal REM dream cycles may do slight twitching motions while safely asleep without disturbances
Dreaming
Convulsions, repetitive twitching may indicate seizure disorders which require veterinary medication management once diagnosed.
Seizures
Canine distemper virus may prompt neurological twitching but requires swift treatment as life threatening illness.
Distemper
Film sleep twitching occurrences to show vet for accurate diagnosis between pain, dreams or severe seizures
Record Episodes
Note exact body parts convulsing, duration and frequency between episodes to identify any patterns setting them off.
Log Details
If epilepsy, medications from your vet help control seizures preventing further brain damage from constant uncontrolled electrical storms.
Medications
Arthritis and nerve pain can also disturb sleep causing sudden uncontrolled muscle spasms when shifting.
Senior Aches