I'm claustrophobic, but it's only bad in certain situations.
I also have a slight fear of not having control. So sometimes I get little panic attacks when I fly, because the tight quarters mixed in with the feeling of flying through the air in an airplane controlled by another person freaks me out.
But that is what Valium is for. I have to take atleast 50mg every time I fly otherwise I get just a wee bit strung out.