Low supply??

H

My almost 11mo has lost about half a pound in the past month, could that mean I have a low supply or is this normal? He has enough wet diapers every day but sometimes I think they aren’t wet enough. He normally is a pretty good eater with table foods but lately he’s been very finicky and I think it has to do with teething but I’m not 100% sure. I give him water and pea milk during the day but he takes sips at most.