Cancer(disease) and everything like that.

Aerophobia. I am not happy with standing on the cliff where I can see deeply down the hill.  

I'm afraid of height, i think it's a pretty common fear. I also can't stand insects but it's more like they disgust me

Ophidiophobia - the fear of snakes. I think it's really common. Most snakes in my country are non-venomous, and I am aware of this, so I just feel a bit uncomfortable around them.
However, snakes like vipers and cobras terrify me. I would freeze if I saw one in the wild.

Astraphobia- fear of thunder and lightning