Hello, there is nothing necessarily wrong with inverted nipples - many people can function normally including the ability to breastfeed. New inversion of a nipple can be a sign of a breast problem but this does not sound to be the case with you, if they have been inverted since your early...
I think you will be fine. I do not think that the tanning bed did anything. My guess is that you developed some swelling because of the etanning and that caused the nipple to become relatively inverted. You might have type I inversion all along.
What you are describing, an inverted nipple that is painful and bleeds, is definitely NOT normal. These may be signs of an underlying breast malignancy and you need to be seeking consultation with your primary care provider, OB/Gyn, or surgical breast oncologist. Inversion of the nipples...
