"118. Psychological/psychiatric trouble of
any sort?"
Well,not until it's diagnosed.
I guess, what your describing, is looking out of the window, seeing a large expanse, and getting overwhelmed.
The stage at which this affects your ability to control the aircraft, is when you need to seek professional help. You owe that to your crew and charge. Is that likely to complicate things, - yes.
Or are you just getting a bit jittery.
(Happened to me all the time when I saw that tyre on the C172 so still, and so high up
)
Perhaps this is the forum to 'air those fears.