I feel like something is wrong.

I have this pain in my chest every now and then, not huge just a little ouch here and there; but I've also found myself out of breath way more than i ever should be.  Also lately i just been thinking, and if you know me in real life, thinking for me is a really, really bad thing.  I start to think about her, and how I miss her terribly, i doubt ill ever get over her really but whatever.  Idk what else to wright, sorry.