I woke up and couldn't focus on any thing properly.. i was like seeing two images misaligned...my left eye is "slightly" higher to my right eye by like 2 mm tops....

And when i focus on things like a dot, the left eye turns upwards and creates teh same misaligned focus again....

Im going to optician so would like to know what possible things it could be ?

Strabismus could be the culprit. It's the only thing that comes to mind, but I don't know a lot about eyes.
Strabismus, more commonly known as cross-eyed or wall-eyed, is an eye muscle condition in which one or both eyes may turn in (esotropia), out (exotropia), up (hypertropia) or down (hypotropia).
The eyes are not properly aligned and do not focus on an object together at the same time. One eye may be turned all of the time or only some of the time.
Tilting the head can be a sign of an eye muscle imbalance or strabismus. You may have double vision when looking down or in a certain direction. Tilting the head may minimize the double vision to a more manageable level.


I hope that helps.

So is such a thing fix-able? Will i go blind or anything ? Will glasses fix such a thing ?

Just needed to know so i can stop stressing over it.