im a thirteen year old girl. i was changing and my armpit started hurting so i rubbed it and i noticed there was a bump. its as big as a dime and its not visible. i have read up on bumps in armpits but im not sure. i havent told anyone yet and im wondering if i should? it only hurts if i press on it or my shirts rub on it. i dont know what it is and i dont have insurance right now so i was wondering if anyone has any idea. i am just 13 and i wonder if its a stress **m????
please if you have an idea help me!:):confused::D