Get off the computer and get to an Emergency STAT! Call 911/your emergency number or have someone take you!
If you have not done so already, please go to the ER and get this checked, or, if you are alone, call 911, I would certainly not drive while like this. It is always good to have this type of problem checked, yes, it could be a migrane, but, if it were me, I would be in the ER now.