I will preface by saying, I was not abused as a child. (People always think I must have been abused to be scared of a boogy man)
By third grade I was afraid of the ghosts knowing I was empathetic and would come to visit me.
I was still afraid of the boogy man until my 40's - until I met my current husband who is the only one whose presence puts a protective shield around me and the psychic attackers can't 'see' me to harm me. My first two husbands had no psychic shielding abilities.
My Dr.'s and other people (even my husband)

would call what I experience as part of the delusional part of our bipolar illness.
Idk if it is or not, but I do know that I clearly still feel when a ghost comes in the room, or flies by too close, or when someone is searching psychically for something and it comes to close to my own existence.
So ya, I think its part of bipolar. I get through it 90% of the time with reasoning with myself, and allowing myself things like lights on or tv on. Sometimes I just handle it on the psychic plane. The more aware we are, the stronger we can be. Never harm anyone, help others, remember karma.
I know I sound nuts to some people, but I put myself right out there talking in language only I and people like me understand. I don't know if my invisible world is real, or not. But it feels real, and I don't think up these thoughts or feelings - they happen to me whenever they want to.
I am the leaf, and life is the river.