Have you tried pumping a little before you feed your daughter, it might be that your boobs are too full?
Is it during your let down?
LAY BACK! I would recline and it helped. Sounds crazy right?! A lactation consultant told me to do this b/c my let down was overwhelming my little one and it worked! I felt totally odd doing it but it made a huge difference. Gravity took away the impact and the baby was able to nurse more comfortably!
Take ur thumb place it on ur upper nipple and index finger on ur lower nipple squeez alittle on ur milk dont come out to fast while u feed her so she wont chock ive done it fr all my kids and it worked