My daughter turned 4 months today, but for the last 2 weeks or so, she's been SO fussy/cranky. She went from being this super chill and mellow baby that loved to swing, or could at least be put down and all of sudden she cries even being laid down for a diaper change😩.

She wants to be held ALL of the time now and cries much more easily now. What gives?! (Yes, I do have the wonder weeks app, and it indicates a stormy/fussy time for at least another 2 weeks; is this really bc she's approaching a new milestone?) Any other babies suddenly so fussy?