It's been so long since my double vision started I honestly don't remember exactly how it did. I've had it for at least a couple years now.

I don't remember is being quick like that though. I think it just showed up and then decided to stay.

You should probably see if your neuro would send you to a neuro ophthalmologist if it happens again. They are better equipped to tell you exactly what is going on.

I hope it was just a one time thing and doesn't happen again!