From Openwaterpedia

noun - Autophobia (from the Greek: ἀυτο, auto, "self" and φόβος, phóbos, "fear") is the specific phobia of isolation; a morbid fear of being egotistical, or a dread of being alone or isolated. Sufferers need not be physically alone, but believe that they are being ignored, unloved, threatened by intruders, and so on. Autophobia is also used in its literal context to mean an irrational fear of oneself. It is sometimes associated with self-hatred. Way out in the ocean, the channel swimmer had to face his autophobia when his escort boat moved away from him.