There was a time I used to believe people faked these things, being stupid, seeking attention or they were just plain crazy.
But after what I've been through, I experienced first hand, how deep the mind can go... how real spirits are, and that there are sooooooo many things that we as human beings, have yet to understand, beyond the simple and logic things we are used to, the physical.
A lot of things are just left unsolved... and if I had push myself in the past to continue endeavoring the world beyond the physical... I would've probably ended up on the streets, in a mental institute, or dead.
Your wife got used to the random screaming and trashing though? I never had a girl that could really understand me in my darkest. Such a rare beauty to find.