I have been having a lot of discomfort in my mis-upper back.  Random tender spots along rib cage.  Some upper stomach discomfort. have found swollen lymph glands in neck and under arm, they seem to come and go.  Some pain in upper arm area, tingly hands.
Thanks for your question on Chat Doctor. I can understand your concern. Axillary lymph nodes are enlarged in lung infection and cancer. And both these cause pain and chest discomfort. So better to consult pulmonologist and get done 1. Clinical examination of respiratory system 2. Chest x-ray 3. CT thorax with Contrast 4. Fine needle aspiration cytology from axillary lymph nodes. According to the diagnosis, you may need antibiotics and other supportive Chat Doctor.  So better to first diagnose yourself and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.