Re: Spitting up? Or Throwing Up?
When you say she's throwing up, is it forceful and projectile?
How often would you say she does it? Once a week? Every other night? Is it around the same time of night each time?
How does she behave afterward?
More burping might help (although some breastfed babies just don't burp that much!). I wasn't that great at bringing up the burps either. The way that worked best for me was to sit the baby up on my lap, facing to the side, support his head from the front (with his chin in my hand), and then bend him forward slightly at the hips while patting his back. That usually worked if anything was going to.
My brilliant "babies":
Butterfly - 13 yo - environmentalist
NinjaBoy - 10 yo - stuntman