When my son was young (less than 5 months old), he was on bottle feeding and fidget a lot too. It was due to his tummy wind and feel uncomfortable. I try to rub his tummy with ruyi oil before bottle feeding and burp in between the feeds. After baby turns older, they will fidget less and outgrown the stage. Also, you might want to check if the teat size is too big for your baby? The teat flow might be too fast for your baby and cause it.
Hi there, Mommy! Did your lo just transitioned from breast to bottle? Cause if yes, it may be that your lo prefer your breast more than the bottle. The bottle's let down maybe the cause too. Check if it's not to fast for him.
Hihi mummy, no all along he was on btl feed