There are a lot of things that make us fearful. Some are better at hiding it. Are you scared of being a bad parent, that girl in the cubical 3 rows down or your blog not getting read. You can get past these things but not a phobia.
A phobia: The main symptom of this disorder is the excessive and unreasonable desire to avoid the feared stimulus.
My Phobia is that I hate being underground, my brain races and I am very fearful that I will get trapped. Yes, its unlikely but hey that is what makes a phobia. I hate The metro, subway and Marta