fussy while BFing

scdancer

I need some help please!  I posted this is the 0-3 month board and thought I'd post it here to.  I have a 7 week old and I am breastfeeding (and she gets a bottle of my milk while I'm at work) and about 1-2 times a day it is very difficult for me to feed her.  She will pull my nipple and suck for only a few seconds and then start to cry and repeat.  Sometimes it takes a while for her to calm down and eat.  I'm not sure if I have an overactive letdown or not.  Don't think I have an oversupply b/c I only pump about 1 oz. per breast after I feed her.  Has anyone had experience with this?  It's very hard to feed her, esp. when I'm the only one watching her and can't give her a bottle myself yet.  Thanks!