Help!! My ten year old terrier has developed sneezing, reverse sneezing and now has started having seizures while sleeping. Any ideas on what the cause could be?

The seizures can be caused by the abnormal breathing due to the sneezing. Your dog never has the seizures while awake I am guessing. Perhaps there is something new in the home causing this. Try to remember what has changed, it could be another animal, laundry detergent, pollen or numerous other causes. I hope you can get to the root of the reason. If nothing has changed, I would take him to the vets office for an answer to the cause.
Good luck.
Karen

the seizures could also be caused by glucose levels dropping. dogs as with people - levels really dip during the night. make sure he is getting a late nite snack before bed.

you must really have the dog checked by your vet tho.

used a new carpet cleaner? anything different on the lawn?