My daughter will be a month old tomorrow but she seems as if she chokes on my nipple but when I give her the advent natural bottle she takes it with no problem. Should I become a exclusive pumper? But I don't have a stash of milk supply. Why is she choking off my nipple? I know about the fast let down but I don't let that go in a towel before I give her my nipple. I also tried different positions but she still chokes with every position.😔 please help