help!!

my right nipple hurts so bad!! its like inside the nipple and I dont know why my areolas are dry! but I lotion them and honestly my left is dryer and my right isn't really dry and that's the one the hurts but I went for a blood test and it negative I don't get it and looks like its getting darker there light brown patches on it it feels like a lightening bolt feeling going into my right nipple and it hurts so bad and I don't wear tight clothing