I am 26 years old male from 6 months i am feeling etching at my left nipple area . I am actually stressful in my Job whole day . i also suffer acidity regularly but this nipple issue worrying me as when i wake up in the morning the nipple tip gets hard and i just could not helped but to stretch it to feel relax but through out day it continues with regular intervals . My do skip lunch and thus feel acidity regularly due to work load . Also i do smoke 6 to 8 cigarette a day was that the reason behind it Pl advice .