Anyone have any ideas if a mint smell or odor bares any spiritual meaning or phenomena?

Over the past couple of weeks I've smelled this mint odor coming from my hallway every so often. I believe it's only been in the morning the times I've smelled it. At first I thought it was my AC but it's not a usual odor when the AC is on in my house. There are no plants in the house or deodorizers that smell like mint.

Any ideas?