My son was born in December, he has always been a very good 'bf'er, altho when he would latch on initially for the first few seconds it would hurt at first but that went away. He still clicks sometimes when he eats and the only thing I came up with is he usually does this when the milk is flowing out quickly and it is hard for him to keep up with. He is growing well and I haven't had problems with sore nipples except for that initial pain the first few weeks, so the clicking has become a normal part for me. I don't know if this helps. Hang in There!!