Sir, i am 23 and i had my gynecomastia treatment 8 days back using both SAL and gland excision. My chest has become flat and there is no swelling or bruishing near the nipple, where the doctor made the incision.But i am upset because there is a small painful lump like thing under my left arm ( i googled to find it as "swollen lymph nodes" ).I am worried about it and planning to visit the doctor soon, but i posted here to seek advice from you experts, is it normal? there was no lump before OP.