The argument of 'I' and 'me'

Who is experiencing you reading this right now ?, is it someone/something inside your head having this experience or is it just a series of brain processes what enables you to read this, and if your answer is yes, why don't you notice yourself breathing or choosing to when to blink and when to yawn and what keeps your heart pumping blood around your body? Surely its the same 'me' what decides not to walk the dog if its raining ??