I have constant pain under my arms -- mainly in armpit area.  Also, my upper back is sore, the pain moves around.  I did visit my doctor as I thought it was swollen lymph glands but he did not find any.  Waiting back for results on some blood tests.  Concerned it could  be lymphoma or something worse.  Also, some red areas under my armpits.
Hi, I am sorry for the health situation you are going through. The pain you are feeling under your armpits associated with some red areas might be related to infected hair root especially if you use shaving as depilatory methods to remove the local hairs. If no sign for infection, then, arthritis of the shoulder joint should be ruled out by X-ray. For the moment, I advise taking anti-inflammatory medications and keep a good local hygiene until the tests results are in. All the best! Chat Doctor. 