Can Severe Vision Problem Cause Dizziness And Nausea?

Hi I am a 22 year old female. I have really bad eyes I was prescribed glasses when I was young to read write and watch telly and so on. But as the years have gone bye the worse my eye sight has got. I actually haven t worn glasses for years as mine were broken and never really got round to getting others which is very silly. I worked as a checkout assistand for 6 years infront of a screen and I have now got a new job infront of a computer all day. My eyes have been so bad now for such a while I struggle to see anything especially further away, I squint to see things, I can t drive in the dark as I see nothing, I get severe head aches, I m always feeling dizzy and I become shaky and nauseas with it. I did book an appt for an eye test with specs savers nearbyu but I had to cancel my appt as I was working on my what was suppose to be my day off I can only book one on a tuesday and when I tried to re book their wasn t for weeks their isnt many choices around here n that s really the best place. I know it needs to be sorted.