Hi everyone. I am 32 years old, a former smoker (quit now for almost a year). Here are my symptoms...I feel a small pinch in my chest from time to time that only lasts for a second, the left side of neck hurts if I bend my head a certain way, and sometimes my arm pit aches, but nothing really painful. I have not experienced any shortness of breath, coughing or any kind of mucus coming up. I do ccasionally have heartburn and feel a little nauseated, should I be worried that this is lung cancer? I have a 5 year old son and if it is serious, I want to try to get in and be treated so I can be around to watch him grow up. Any advice is most appreciated..thank you!