I can only share with you that I suffer from pericarditis; and I have the same symptoms you described. I finally drove myself to the emergency room because the pain was getting too bad. It turns out I had a CRP level of 7.5......which is really really high. So I got quite a lecture from my doctor........that's its not a good idea to wait these things out; especially with heart problems.
As Marycain mentioned there are many reasons for chest pain. I would not hesitate to call my doctor; explain to your m.d. the symptoms you're having. I'm sure Saysusie and/or St. James will pop in with some more knowledgeable advice.
You will be in my prayers, friend. Stay strong, hold on; and if the pain is too much call the M.D. right away. Keep us posted - take care !!!
"I believe that friends are quiet angels who lift us to our feet when our wings have trouble remembering how to fly." - unknown