As I've mentioned before, I've been through my own bits of wierdness. Rumba helped me through the last one, and I'm eternally greatful.
It's an odd thing, and I never thought it possible given that our house is a new construction; but every now and again I'll catch something out of the corner of my eye. A shape, movement, things like that. Now yes, I know that some of it can be written off to mundane things, such as a trick of the light, imagination, my own hair, things like that. Fortunately, I deal quite a bit with animals. Three cats running about the house, and regular trips to the horse barn. I immediately check the reaction of the animals, since they tend to catch these things better than we do.
Jack Jr. is really perceptive. More so than many other cats I've been around. I'll notice something, and I'll turn and catch him crouched down, staring at whatever it is, spirit person or what have you, with totally dialated pupils. I let them know that they need to keep moving, that this is no place to get "stuck", and check what I'm feeling against the cat's reactions.
The other two cats will notice something, bristle at it, then come running to Momma or Papa to hide. So it's up to me and the kitten to go see who's knocking about.
Kids. What can you do with them?
So, think me wierd if you wish. I am Mad Jack, after all...