<s>[INST] I have a "lump" on the bone behind my ear. Sometimes it's painful. I wear hearing aids and glasses that rest on that spot. Could the bump and pain be from my glasses temple being too tight?  I had an MRI for headaches in January and nothing of interest showed up. [/INST] Hello dearWarm welcome to Healthcaremagic.comI have gone through your concern in depth .*  This seems more likely to be post auricular lymph node enlargement  ,     however  confirmation  with  clinical examination or  a photo pic as an    attachment  to evaluate  further  would  be  of  great help .Wishing you fine health ahead .Regards . </s>