Fussy Eater

Hi mamas!

My baby boy will be 5 months on the 10th and we’ve been in the 4 month sleep regression for the past few days. He has been difficult to put to sleep and wakes up a few times in the night when he wasn’t before. The past few days when I try to BF him he gets super fussy. He latches and does well does few minutes, but then pulls off to fuss and whine- latches back on and repeats the pattern until I sit him up. I’m curious if any of you have experienced this? A part of me wonders if my supply is dropping, but feel it could be linked to the regression. Any input is appreciated! :)