Of course your aware of it, your brain is sending a signal to your muscles to and move your hand. And you cannot manually breathe the body does it all on its own with help from the brain its just your aware of it.
If you want a good vacuum get yourself a Miele, Iv had my Miele for near twelve years now and its still sucking nicely they are even doing a bag less now.
Yeah they made some wanky deal with them, But 13 billion is alot of tax to a small country. Been self employed myself im pretty much bent over and taxed up the ass it can be frustrating.