thanks Flaneuse, I still have my breast and nipple only had a WLE. I didn't have it before, just since radiation.
I've wondered if it was due to the blue dye injected in the nipple because it is still blue 4 months later or maybe that my nipple was fried. I am going to try to forget about it and ask the radiation oncologist next week, as he is the best at explaining things. Better than a useless "pain is normal" response.
It is comforting to hear so many others have these random pains, so thankyou for answering :)