im a all most 16 and last year these bumps in my arm pit the have been the size of a pie all the was to an inch they are really pain full they make my whole left are hurt to were no one can hit it and the pain goes threw my ribs and down to my lower back but this only started happening all the pain threw the ribs and back and most of the pain in the arm after i had a 2nd surgery to try and get rid of it but it worked for a little bit but it keeps coming back but after the first sugary the bump came back in the same spot but after the 2nd one which was like 5 months ago its back again in a different spot and more pain full but some times it goes away and then comes back