Hi everyone, I am exclusively breastfeeding my four week old and within the last week I’ve noticed he has become fussy (clamping down and/or pulling at my nipple) on some feeds. He is particularly fussy on my left side. I’ve googled it and from what I can tell it could be an oversupply, under supply or simply a fussy stage. However, none of that is actually helping me determine which one it is and provide a solution. Especially in the night as he gets very wound up and waking my 3 yo. I was wondering if anyone on here had any advice or words of wisdom that could help me decide for the problem?