I am 18 years old, I have never had any serious health problems, but yesterday evening when I was sitting before my computer I started feeling a weak but sharp pain around my heart (I was in quite a stressed state). I wasn't paying attention, it wasn't so bat but I still felt the pain when I went to sleep. I tought I could sleep it out. When I woke up in the morning I still felt it, but when I stood up the feeling was gone. I found out that now, it only hurts when I am laying on my stomack or on my sides (but worst when on stomack). On my back, sitting and standing up, I feel nothing. One more thing is, when I lay on my left side my left ear throbs and aches, and it started only today.I have a simple cold for a mondt now, its finally getting better fast now, altudg my lymps umder my cheekbones are still swollen.