here mate,
it seems like you got some problems with djinn.
dont listen to the garbage some people above said.
all these things you hear about, possesions, exorcisms etc.. are about djinn.
djinn are a nation like humans, the thing is they can see us and we cant see them.
my friend's father does exorcisms, an my friend recalled several occasions of his father performing exorcisms. also, at one time, i saw a man who was possesed praying in the mosque, he would continouously shake(in an unnatural way).
the world of the djinn is very akward, and very different.
to help you in your problem i refer you to this video, i am confident in what i am reffering you to, take my word for it.
YouTube - The Truth About The Jinn (1 of 8) - part 1
YouTube - The Truth About The Jinn (1 of 8) - part 2
YouTube - The Truth About The Jinn (3 of 8) - part 3
YouTube - The Truth About The Jinn (5 of 8) -part 4
YouTube - The Truth About The Jinn (6 of 8) -part 5
YouTube - The Truth About The Jinn(7 of 8) -part 6
YouTube - The Truth About The Jinn(8 of 8) - part 7