I noticed during my 3rd cycle that my left nipple started to become sore and seemed like there was a little lump in it. after the cycle the pain and lump went away. When I did my 4th cycle the same thing happened only this time it didn't go away. nolva brought the pain down, but there is still a little lump behind the nipple and a little pain. is this gyno? if not what could it be and what can i do about it? any opinions will help