Why do I get dizzy on the computer?

[Ssb987]

Over the past year, I have been having dizzy spells and extremely tender spots around my head/face. It seems to be related to working on the computer. It might be stress-free, as I could be more stressed while working. At first I thought it was eye strain, but after wearing my glasses while on the computer, it cleared up only briefly. Then I thought it was glare from the computer, but after adjusted the monitor my symptoms were only alleviated briefly. Just before getting LASIK two weeks ago, I started developing a crosseyed sensation. I was hoping the Lasik would clear it up, but it hasn't. Within this same period of time I've grown allergic to my contacts and developed jaw pain from grinding my teeth. I was also in a very stressful environment last winter, and I noticed during peak times of stress I would get so dizzy I couldn't stand. This past summer I wasn't dizzy at all while I hiked for 6 weeks. But after a month back working at a computer, I'm dizzy most days.

[jbc37]

just ideas to explore, from a long time computer guy.
blood pressure, glasses
You mentioned grinding your teeth, your nervous system is  to stimulated, stop coffee and your "supplements"
I got prescription eyeglasses...the doctors when testing you, for "reading glasses" automatically go for 14" from your eyes.That does not work for my computer monitor which is 30+" inches away. I just buy a $20 pair of 1.5 magnifiers. Also, I tried a 1.75, after a hour i went temporarily blind for minutes...so eye strain is a real thing.
I assume you are using a flat panel, not an old monitor with a refresh rate. if that is the case, buy a flat panel monitor. Dizziness could be blood pressure....and the stress you mentioned, makes every thing worse. good luck.