Cranky baby?

Ava has always been an amazing baby! Like too good to be true good! Well, for the past month, month and a half, she has been sooooo cranky! Like throws herself back and screams cranky! She cries all the time when I’m around.. if I even dare to leave her eyesight she loses her mind. I don’t know what happened?! She refuses everything I try to give her at dinner time which is weird because she used to lovvveee food. Now she just wants to nurse or have a bottle. Is anyone else experiencing this?