Haha!!!! Here's one....my patience....it's truly non-existant!
I would say trust, insecure issues in relationships.
In my (largely misspent) youth I was a rock-climber. As I have got older, I have developed an irrational fear of heights. I'd quite like to fix that (and I may do, later this year, with a trip to a hypnotherapist).
Stop worrying and stop thinking negative.