There are several scientific terms for it. Phobialist.com gives me these: Autophobia- Fear of being alone or of oneself. Isolophobia- Fear of solitude, being alone. Eremophobia- Fear of being oneself or of lonliness. Isolophobia is probably the one you're wanting. There are other phrases for more specific cases. Empty Nest Syndrome, for example, is loneliness that parents have when their children leave the home.
autophobia/monophobia
Monophobia Monophobia
scared
Eremophobia- Fear of being oneself or of lonliness.
The irrational fear is called a phobia; the experience or object that triggers a phobia could be called a phobic experience or object.
Yes, there is such a thing as a phobia of horses.This phobia is called Equinophobia.
The phobia of lawsuits is called Liticaphobia.
Yes, the phobia of sunlight does exist.This phobia is called Heliphobia.
Yes, the phobia of gold is real.This phobia is called aurophobia.
Yes, there is a phobia of bathing.The phobia of bathing is called Ablutophobia.
Yes, the phobia of flowers is real.This phobia is called Anthophobia.
The Phobia of a Werewolf is called Lycanthrophobia.
The phobia for roosters and chickens is called alektorophobia.
This phobia is called Panophobia, or Pantophobia.
The phobia of vomit is called emetophobia