Last night I started feeling terrible pain in my chest. It did hurt to breathe but it REALLY hurt when I stood up straight and when I laughed. When hunched over the pain lessened but as soon as I tried to straighten my back the front of my chest would erupt in a sharp stabbing pain that was unbearable. I went to the ER and they performed a blood test, and ekg, and an xray and couldn't find anything wrong.
The weird this is is that my neighbor in my apartment building went to the ER last week for the exact same pain. They performed the same tests with the same negative result. We are both 21 year old females and it can't be a coincidence that we both are having this problem a week apart.
Neither of us have any cold like symptoms -- no coughing, no runny nose, just the chest pain.
What could this be?