Aloha! You're speaking to Dr. Michael Salkin
I'm sorry that your question wasn't answered in a timely manner and I regret that I'm not allowed to correspond with you outside of this venue. Your dog's unusual behavior
, twitching, and vomiting (an autonomic nervous sign) suggested a complex partial seizure (previously called petit mal and now also called a psychomotor seizure) which is defined as focal or asymmetric sensory or motor activity affecting any part of the body; can be associated with autonomic signs (vomiting, salivation, e.g.) plus an alteration in mentation (mental status) and/or behavioral abnormalities.
Stroke usually is evidenced by a profound change in mentation (obtundation/coma), vocalizing (whining), and seizures
. How old is he, please? Stroke is rarely seen in the young dog. I don't believe that your stress level or incense is responsible for a seizure but I can't discount any stressor.
Please give me an update on him. Mark your calendar for this event. You needn't have a vet attend to him if your dog has normalized but another event within 24 hours of the initial one ("clustering") should prompt a vet visit. Many of us will tolerate one mild (lasting less than 10 minutes, no thrashing about, no incontinence, no loss of consciousness) seizure monthly before considering anticonvulsive medication.