What is the difference between negative energy and evil spirits?
There is no difference between Negative energies and evil spirits. Ghosts/ Demons/ Negative Energies etc are basically evil and have a disposition to harm. I suggest you go through http://www.spiritualresearchfoundation.org/…/ for an in depth view of Negative energies.
Negative energy is not from a being. It’s unformed and can either be attached to a place, a thing, or a person. It’s creted by an event that happened during the making of the person, place or thing. An evil spirt is a being that could either be supernatual in origine or a passed person. It all depends on how it was created or the manner of death or the persoanality of the person who passed.