I am a 26 y/o female. I recently started a new job three weeks ago. Last week I woke up in the middle of the night with chest pains upon inhaling. The entire next day my chest hurt - a burning, pressure type of pain - when ever I would breathe in or swallow. It went away for a few days and now it is back and the pain has significantly increased. I don't have insurance yet and am worried that something serious may be wrong. However, I don't want to get too worried over a strained muscle. Please help!