My first sign of have MS was double vision for like a 3 -5 days then it went away. But that was years ago. I haven't had eye issues like that before.

This sounds alot like me, my right eye became slightly swollen and ‘dropped’ and was practically shut - after being told by many professionals, including the ophthalmologist, that I was closing my own eye and doing it to myself. I was then diagnosed with MS with suspected optic neuritis but my symptoms had been going on for over a year before being took seriously