The military has been researching that.

Infrasound weapons meant to make enemy targets have feelings of dread and distract them with hallucinations.

There are functional prototypes that work.

Cool

Cracked article on it if you're curious:
http://www.cracked.com/article_18828_the-creepy-scientific-explanation-behind-ghost-sightings.html

My vision has also been slightly impaired, as it sometimes seems as if things are doubled slightly

Well the visual affects of this are vibrations affecting your eyes. That could double your vision if your eyes don't perfectly move together like they should. Mine have that problem.

These also began recently, at the beginning of the school year, It could be my glasses need readjusted

I am overdue for an eye appointment

If you're overdue then your glasses needing updating might be more of your problem.

Still you might find that article interesting nonetheless.

Without my glasses I actually get similar feelings you described.

It's because they don't line up perfectly.

I can force them to line up correctly but that takes a lot of concentration and that can stress me out and give me headaches.

Without glasses it's too much effort and stress to handle.

yea

I can technically see basically the same with or without them. It is just more stressful and I get unpleasent feelings.

also, one story about the hallucinations I told you about, this week I walked past my brothers room and the lights were off, I swear I saw a White Circle right above my brothers bed, like someone was sitting in there and they had a white face.

Creeped the shit out of me

White circles definitely are something with your eyes acting up.

Push on the side of your eye, on the eyelid not the eye itself, and you can make one show up.

how white are they?

It depends on what's causing it, the lighting in the room, if your eyes have adjusted to the light.

cause the thing I saw was if you put a paper plate in a dark room with light outside the room

I sometimes see them when I am very tired. It's just my vision blurring.

It goes away after I get sleep.

ok

In that case it's blurry vision causing a glare inside my eye which looks like a white circle out in front of me. When it's actually happening inside my eye.

That's why I have an anti-glare coating on my glasses.

Ok thanks

this really helped me put things into perspective

Most logical suggestion: go in for your overdue eyecheckup.

thanks

On those ghost hunting shows, when the find stuff on camera (which is rare) how do they do that stuff??

Those shows are purely fake.

What they see, when there is anything at all, is just things like dust in the air reflecting light from their filming equipment.

They always go into old abandoned buildings which have not been maintained and have layers of dust, which they kick up when they walk around in it. Their lights reflect against this dust and can make either big or small shapes show up that is more visible on film because of how a camera collects light.

I know they're fake, but there was this one episode of Ghost Adventurers where they investigated a "Haunted" gym and they caught a image in a hallway by using a camera that when it detects movement it takes a picture, and in the captured picture the was a shadow of a person, Did they just have someone walk behind it to create a shadow

No, it was definitely just dust. That can easily look like a shadow.

ah, ok

You can replicate this by taking something that produces a lot of smoke, say like a campfire, and shining a flashlight through it.