Hello, I Am A 38 Year Old Male Who Exercises

Hello, I am a 38 year old male who exercises regularly. I am in fairly good shape and was just diagnosed with gynecomastia. I have a half inch lump in my right breast that is tender to the touch, but has recently started hurting worse. I take supplements, multi vitamins, fish oil, dhea, whey protein, glutamine and creatine. Does any of this sound like the culprit? Maybe the DHEA? I take Nucynta 50mg for pain. What can I expect? What can I do to make this go away?