Hi, I am a healthy, 68 yr. old, female. I ve been experiencing chest pain, on my right side for a since yesterday afternoon. It hurts when I breath in deeply, or cough. It also hurts to lie on my back, or bend down to pick up something, I also have a mild headache. I don t take any medication, have any other health issues. I had been swimming laps every morning this past week, and thought it was just sore muscles. It isn t getting any better...