After months and months of frustration and confusion of what could be causing my dreaded "puffy nipple" problem, I think has been solved. Since I dont posses any hard tissue or lumps under my nipples, I couldnt figure out what the hell was going on. Normal prolatin levels are between 3.7 and 17.9, MY levels were tested at 31.5!!! What are more side effects of high prolactin levels, because for the last 6-8 months I just havent felt right. I have little to no sex drive, fatigue, depression, etc. Just wondering what high prolatin levels can do. One more thing, my Doc. said to stay off of my "nutritional supplements" for a month to see if thats the cause, and then see him again for another test. I think this is a waste of time, and that I should start taking a script ASAP to get my levels down. All im taking is Optimum Nutrition Whey, and thats it! Protein supp cant cause high prolactin can it??? I dont think so, but correct me if Im wrong. This problem was persistant before I was on any supps anyway. What else besides the unknown can cause high prolactin levels?? Thanks bros'.