i went to a doctor when i was 14 cause i had lumps in my neck he said that it feels like an infection and when he found out i was a 3 pack a day smoker he was worried it could be cancer he said after some tests it wasnt

i quit smoking for 4 years but sad enough a year ago i picked it up again the lumps never went away and now i got one in my arm under my elbow it hurts sometimes what could they be do you think it is still infections what should i do