Seizures or brain zaps/anxiety?

I am in Toronto, Ontario. I’ve had every test under the sun (except an EEG to rule out seizure activity). It’s highly unlikely these are seizures, and three other neurologists have also agreed these are not seizures. Reducing stress has also reduced the occurrence of dizzy spells. However, I still feel off-balance and dizzy with any sudden head movements. I don’t take any breaks while on the computer and this may be a preview of my problem.