the dog probably had a seizure sypmtoms:
lose consciousness
falling to the ground
paralyzed, reluctant to move or can't stand up
shaking
excessive drooling
head drawn backward
teeth gnashing
frantic thrashing of limbs
vocalizing
paddling of feet
salivation
uncontrollable urination and defecation
Dog will be in prolonged seizure or status epilepticus (SE) if the seizures is not over within five minutes.
After the seizure ended your dog will have the following symptoms:
confusion
disorientation
temporary appear to be blind or deaf
eat or drink excessively
pacing
salivation
restlessness.
This is a classic sign of a "Seizure". There is another thread down below pertaining to another Chi doing the same thing...Please read it.... Your mom's dog needs to see a Vet (Soon) to determine what is causing the seizures and how they can be treated.....If you can film or record it happening, it would be very helpful for the Vet....
There are alot of causes (Some serious & some not). With proper treatment, they can be controlled....Please, don't wait!!! Let us know what you find out.....Karla
It sounds like he is having a seizure, with the right medicine, he will be him
self again, please don't hesitate to get him to a vet, if you want to save his life. Which I am certain you do! Good Luck to you!