I have been dizzy since about two days ago i played video games all day (never even play video games) since than i'm dizzy and can't walk straight. ?

Eye strain: It is not uncommon for some people to develop eye strain when staring for long periods at computer monitors and playing video games. This often resolves in a matter of hours, however. Whether or not you over-did it, you should not be this dizzy. I suggest you see an eye doctor or your internist to further evaluate your dizziness.

Vertigo: It is helpful for your doctor do describe the "dizziness." if it seems like the room is spinning, you may have an inner ear issue. If you are having just a lightheaded sensation, this can be due to multiple causes.