18, male, having this vision issue for about 2 months.
Basically on some objects I will see a slightly vertical ghosted image. Not true double vision I don't think because its not a full double, just a part that is ghosted on top of the real object. Usually only on small objects with a tendency to be reflective so things like the top of a soda can, or white objects/text (like white subtitle text on a black background for example).
I also have light sensitivity (Car lights, lamps etc,). Now stuff like a car light is brighter than it should be normally, and often gives me a glare. During the day though lights are normalized basically. Or if I turn the ceiling light on in my room I won't have any problems inside.
I don't know if I can really get it checked out soonish because of my family's financial situation. I'd also like to say that I spend most of my free time, school day, and work on a PC staring at a screen. I also get much less sleep than the average person by far probably.
Besides a tumor which I can't check myself, I can't find any disease/condition that matches what I have. I've had perfect vision my entire life before this.