The same thing kept happening to me shortly after developing a rather greedy Coke habit..... I spent a whole hour convinced that they can see me ****ing and snorting through my blinds so i put my bed sheet over my window frame and carried on watching porn on mute and listening to entire conversations from people walking past my house with my supersensitive hearing.
Do these helicopters follow your car? (Not implying that this is some Goodfellas style paranoia at all )
They don`t use white vans with fake BT engineers anymore, if you own a laptop or iphone then they can hear everything through the mic. With the iphone even if you switch it off the feds can still listen through the mic, you can`t remove the battery so i put mine in a soundproof biscuit tin in the garage ..
Wearing tin foil hats makes you believe all sorts of sensory and non-sensory ****e. The first clue to this is wearing a tin foil hat in the first place. Eddie + bacofoil = do the math
I'm sure the David Icke site has a whole section dedicated to the phenomenon of Big Brother watching your every move. That's what you get for spending hours on end searching the web for conspiracy theories.
Strange, I've been hearing buzzing noises in my head for a long time too. My internet speed is fine though.