My gf, nipple started paining from past 1 week but its not a sharp pain. Its only when she touches the nipple and the pain is very little otherwise no pain. She is of 18 years and she is telling me that she is completely ok and she also told me that she is feeling like her breast or nipples are growing in size that why they are paining? Is it normal pain. I mean I am very much worried and she is my everything. So please tell me is everything normal?