I am a 24 year old male. I have a unilateral mass under my right nipple. It was the size of a half dollar coin. It has little to no pain and the area around the nipple is dark red and the nipple itself has a white spot. The other day I was feeling the size of it and put some pressure on it. While doing so, clear watery discharge came out. Afterwards the mass seems to have reduced in significant size. Should I be worried?