So today before I got in the shower I noticed that the tip of my left nipple was darker - more purple in color - than my right. Started freaking out, but got in the shower anyway - did a self breast check (which i'm horrible at anyway - I can do them and not feel anything, and then a day later my doctor will feel lumps - one time she even sent me out for an ultrasound!) and couldn't feel any lumps. I got out of the shower and the nipples were the same in color. Then a few minutes later after getting dressed and brushing my teeth, the left was a little more purple again. I tried to go on about getting ready and by the time I was done getting ready I checked them again and they were the same color. What is going on? I am on my period right now - deff not pregnant. 26 years old, no family history of ANY type of cancer - just fibrocystic breasts, which I have also been diagnosed with. Trying not to freak out about cancer!