I have stabbing chest pain in the front and back (under my rib cage) with deep breaths and sometimes at rest, pain and shortness of breath and chest tightness and heaviness with mild exertion and at rest. I have a chronic cough, healthy female 54, non-smoker, and today I noticed I have pain on touching my neck in a specific location on each side of the centre of my throat but more painful on the right, pain is with touching my throat. If I ride my bike I struggle to keep going and I am tired, not myself. What should I do?