You searched for: “bathomophobias
bathmophobia, bathomophobia (s) (noun); bathmophobias, bathomophobias (pl)
An overly intense fear or hatred of walking: Whenever Patrick went out of his house to go to the local store for food, he experienced a bathmophobia that upset him very much.

A bathmophobia may also involve the horror of steep slopes, of going up and down stairs, or of having to be on escalators and elevators.