No. A reverse sneeze can happen at any time of the day. And that might be what you are seeing. They have the same cause as a regular sneeze but are much more dramatic. The dog will inhale and exhale rapidly and they might honk. It can go on for up to 2-3 minutes. It's quite disturbing to us but is not bad for the dog. You can help it by eliminating the use of carpet powders, cleaning well and dusting/sweeping so that there are fewer irritants.
Your regular vet can do a treacheal exam and can refer you to a specialist if you need it.
I would start with the regular vet and then go from there.