Fussy eater!

My LO is 9 weeks old and has been fed from both breast and bottle since she was born. I’ve never had a problem with her eating. For the past 2 days she has gotten so fussy and cries as soon as I try to get her to latch. Once she latches she’s ok and will eat a full feed. And with the bottle she refuses it completely and fusses and screams. I have to latch her to my breast and sneak her off while putting the bottle into her mouth. She eats from the bottle the rest of the feed very well. What is going on? Anyone else notice this in their babies?