It's a horrible feeling. I've had anxiety episodes on and off for over 20 years. Recently, after a horrible divorce, I find that whenever I get on a highway and have to drive at least 20 min ,I go into a panic attack and I feel like I have vertigo. I can't keep the steering wheel straight and I feel as though I'm leaning to the left. The only thing that has helped is taking a Xanax before I drive. BTW...I'm fine driving local. It's really scary and I dread driving.... Any suggestions from other people that have experienced this..besides Xanax?