DD won't stay latched

Kittery16

Help!

DD is almost 2 weeks old, and for the past few days for many of her feedings she will latch on and feed for just a few minutes, then freak out.  She will hover over the nipple screaming.  I try burping her and that still doesn't seem to calm her.  She has gained over a pound already, so her feeding had been going well.  Just freaking out about how she is now!  Any thoughts?? TIA