I started flying when I was 6, so the only thing that bothers me about it are the rude people who shove their seats all the way back in your lap
I am terrified of heights now but only certain heights. I can drive along a high cliff and there is no problem. It is when I have to walk up to an edge with the possibility of falling that I get all scared. This dates from when I tried skydiving at the end of college. I never used to have a fear of heights and now I do.