The only thing I have a guttural fear of is heights.
Snakes, scorpions, gila monsters, I was raised with them and used to collect them for guys doing research.
Yes poisonous snakes.
I can grab them, or used to be able to, without missing a heartbeat.
Used to be called upon by my neighbors to rid their house of lizards and snakes.
But put me near a ten foot height, and I crumble.
Acrophobia, it is very common. So it may not be an appropriate answer here.
But I cannot get near a cliff or even get on the roof of the house. Just get me near a height and I turn to jello.
But I can fly in a plane with no problem, go figure.