I used to be able to run farther but I haven t ran in a couple months due to whether and had a allergy test done, taking a pill for allergys ad i woke up with a swallon lympth node I tried running today and I got a very sharp pain in my chest that is unusual for me.
Thanks for your question on Chat Doctor. I can understand your concern. Since you are having allergies, better to get done chest x-ray and PFT (Pulmonary Function Test). Swollen Lymph nodes with chest pain is suggestive of lung Infection or bronchitis. So chest x-ray is needed to rule out lung infection. PFT is needed to rule out bronchitis. You may need antibiotics, inhaled bronchodilators and inhaled corticosteroid (ICS). Antihistamine and anti-allergic Chat Doctor.  Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.