Hi, I have been getting chest pains on the left side only when I'm sitting in a certain position. It only occurs if I'm reading in bed or sitting in that position on the couch. I am a female, 51, fit, do a lot of cardio with no pain but this has become pretty consistent. It's not a sharp pain, more of a throbbing type (hard to describe). I just had an ekg and physical and all was fine. I didn't mention this to my doctor figuring it was nothing but it continues. Any suggestions, should I pursue it with doctor or see if goes away? It's been occurring for over 6 months. Thank you.