Eyeballs flickers at random moments.

Hello!

So for the past two years-ish (I remember a time when it didn’t happen but can’t remember exactly when it began) I have random moments where my eyeballs will flicker left to right for a split second. 

Nothing causes it and there’s no pattern but it happens quite regularly - sometimes it will happen daily and other times I can go a few days to a week without it. 

Though recently it’s been getting worse and more frequent, yesterday it happened while I was concentrating and it lasted a good 3 seconds to the point where I was about to shout for my boyfriend as I couldn’t see. It’s so painful when it happens and for a while afterwards. 

I’m only 21 though so have no idea what could be happening?

You need to go to an ophthalmologist. It could have something to do with your optic nerve