First time mom SOS!

Veronica
I'm having a hard time breastfeeding. I have a good supply and I can pump and pump and still be full but my baby is having a hard time latching because my nipple is large with some help ive gotten her eating but now she overeating in the attempt to fall asleep at my breast and has begun to throw up she is only 6 days old and im lost she can be attached for hours fall asleep and in my attempt to try and put her down she wakes up and wants to suxkle again And this can go on for ever help!!?