Breastfeeding fussiness

Patti

My LO is 5 weeks old. For the past week or so she has been extremely fussy while nursing. She nurse 5 min then fuss and scream and cry. I'll burp her, change her, play and so on for a bit then she'll nurse for 5 min the other side. Repeat process. But after the second side she won't take anymore and just fuss like crazy. Any ideas why? Has this happened to any of you?