Duno wots goin on..started gettin a burny feeling in left boon last night on the outside of boob, scar looks fine n stuff but I duno..not sure if its down to bras I usualy still wear sports bras but had a proper one on a couple of times this wk..or it cud b coz my periods due,usually get sore tender boobs at tht time and my nips r super sore too which usually happens,but duno y its just 1 boob n y its a burny feeling?xx