All right. About a couple months back I took notice that a little bit of blood discharged from my nipples, I didn't mind it. Next, my breasts were hot to the touch and visibly red. Now, a few months later, my nipples seem to be going inward; and they're ashy. I also get this sharp pain or tingling in my breasts, or my chest will just ache. I'm the age of nineteen. So, my question is what could it be?

We can't diagnose this for you on line. My suggestion is see your doctor and have it properly diagnosed and treated.