There is just this big pain that comes up in my chest every once in a while and I just don't know how to make it go away. I am not sure if I am making sense here, but it is like an feeling of fear mixed with a feeling of regret. It is like the feeling after you send a risky text and are waiting for the response. But nothing happened. And because of that I don't know what to do about it. And it sometimes really slows my life down, which makes the feeling worse. 

Can anyone relate, or dose anyone know how to help against something like this?