Aaron,
I would feel that way (spacy, nauseated) when I took Tarceva before getting out of bed in the morning. Now I eat first, wait 2 hours, take the pill, wait 1 hour, eat again. It helps alot. Also, you might want to try one of the anti-nausea pills (I use Compazine on very rare occassions to control nausea).
Hang in there; once the rash disappears and the nausea/dizziness is controlled, you'll feel much better.
By the way, did you get the disabled parking spot? Why are you still on subways? In flu season? Oy.
Trish