Okay its like this, Whenever I start thinking about a Girl my Heart reacts in a Weird way like someone is Injecting me with a Needle. Any idea why this happening to me. More Detail: I m 18 years of age. Only Happens when I think about a Girl. HELP PLEASE ! I have nt had any Girlfriend till now I m not in any kind of Diease It happens when I m thinking about any Girl expect my Sister lol. I hardly talk to any Girls when I know them from inside then I talk to them. Yeah I think I m in Love but with Whom every Girl. HELP PLEASE!