Your symptoms are very consistent with a condition called pleurisy. Pleurisy is a condition where the lining of the lungs/chest wall becomes inflamed. Often this is triggered by a viral infection. It is likely that the infection has caused your lymph node to swell also.
You may not have any other symptoms of infection because your immune system is doing its job as indicated by the swollen lymph node.
Ibuprofen is an excellent medication to treat the pain of pleurisy. Usually the pain begins to improve after a few days.
If it does not improve you should see your doctor.
Advice and opinions given are based on the information provided and must not be considered an official medical recommendation. The limitations of the internet prevent an appropriate evaluation. Always consult your doctor if there is concern.