Talking to Entertainment Weekly, Jen described that,"It’s scary not being able to control yourself — I’ve recently had problems with plane anxiety. I’m not afraid of the airplane, I’m afraid of me on the airplane and losing control of myself.
"I tried to jump out of an Air France flight once," she revealed. "I can’t believe I didn’t get arrested. I got really claustrophobic and I had to get out."
"You know when they hit an air pocket and it feels like you’re falling? I [yelled] on a night flight one time: 'We’re going down! It’s coming down!'" she revealed.
Earlier this year, Jen was in a private plane that suffered an engine failure, and had to have an emergency landing. So, her fears are pretty warranted.
Thankfully she, and everyone else on the plane was fine, but we can't see an experience like that be at all helpful with her anxiety.