I've been experiencing some chest pain for the last three days. I can't eat much without experiencing pain in my chest afterwords. I usually have a bowl of cereal and 2 cups of coffee in the morning. The last few days it feels like I'm full only after a few bites and sips of coffee. I'm finding it difficult to get a satisfying, deep breath, too. I'm talking about the kind of deep breath you get when you yawn. If I burp, and then take a deep breath, I *really* feel the discomfort in my chest. The first two days the pain was centered in my chest, and now it is mostly on the left side near my heart.