Just as with humans, we should listen and notice signs and symptoms and pinpoint the occasions and durations - this goes for our animals as well.
So, the golden rule is - when in doubt, see the doctor or the vet!
Consider keeping the Veterinary Emergency phone number close to where you have the emergency numbers for all other occasions so that when this happens again, you can take your kitty in - this will help identify the symptoms while they happen and will make a diagnosis easier.
Good Luck!
We only have this one body in this life.