I need a little guidance on this, some advice, or maybe its truth.

It seems for the past couple of years, that for some strange reason, that my mind will randomly think of people I knew of the past or of the present. the thoughts, and the emotions it drives out of me are very strong. Some could say anxiety attack or whatever it is considered it to be. though I can never really say if its an attack or not. It is a strong feeling from my ex girlfriend, to friend, males and females that I know. The sensation comes of a thought of a person, which at times has made my heart rushing, pounding, its hard to describe. For one example, i made a friend upset, and through meditation, he kept reappearing to me, and the sense of quickly apologies to him, which I did came to me. Though he acted as if nothing happened. And then there is tonight, as I was sitting around meditating, and relaxing, the thoughts of a another person came to my mind. Why would she come to my mind, and the thought o needing to find her, as we are not friends at all. What my question is this, when your mind randomly thinks of a person, or a person pops into your head, and the emotions rush through you, may it be happiness, joy, sadness whatever. Does that mean the person that you are thinking about is thinking about you? Could some ome enlighten me please, as sometimes, I am not sure of what to do when these emotions go through me.