Is there anyone with me???

Once someone said to me there is always someone looking over you. Is it god or is it your guardian angel, I don't know. But what I feel inside is a presence of someone who is always there like a shadow following your every move,your every breath and the most amazing part is that when you feel you are alone you feel this presence much stronger. Last few days have been the toughest for me and I have the time for myself and I guess when I am all alone I am kind of wiered.But seriously why is it so that when you feel you are alone you are not. Is it our sense of insecurity or something else haunting our subconscious which is scared with the very thought of being alone.Why is it that sometimes you stand among a crowd and you feel as if you don't exist and everyone is waking through you.Sometimes I feel as if it is a wiered sense of illusion ,an illusion which keeps me onguard an illusion which affects each and every of my though process.Or is it an illusion or my conscience which is forcing me to think and think hard that hey you ,you have done something wrong.I really don't know and while writting this insted of getting few answers there are more questions which are coming to my mind. I never see things straight ,it is my curse and I guess another example to prove I do have got a brain afterall..hahaha. Actually wanted to end on bit of a cheerful note,because I hate sad endings.