A growth spurt will last for about 3-4 days, hang in there. I don't however suggest giving her a pacifier now, because if she's hungry, she needs to eat. Just listen to your baby, she's telling you something! It's rough in the beginning, but it gets SO much easier. Also, by her nursing so much, it's actually boosting your milk production to keep up with her growth, so you'll make more and she'll be more satisfied in the long run.