Doe the subconscious mind do alot of things we dont notice at all?

That's actually why it's called the sub (meaning below) concious mind meaning that it is working below your concious awareness of it. The subconcious mind is doing incredible things - that is where dreams come from, the things that magically "pop" into your memory are often from your subconcious. Hypnotists are able to "talk" to the subconcious mind and get clues as to why you are feeling a certain way or have certain phobias even to the extent of recalling past lives.