My little guy just turned 4mos and he has started pushing with his feet and arching his back when we it him in his boppy pillow and even feels like he's arching back a bit when we hold him. Google says gas, but he doesn't seem uncomfortable and it isn't only when he's just eaten. It's like he is getting frustrated after he's put down. He doesn't do it when laid flat as much....he just kicks his legs a lot there. When he's sitting he seems fine.

Anyone else experience this? Is he just ready to be doing something other than leaning back all day? I do have floor seat for him but it's still chilly here and don't like him down on the floor as much since your house is drafty. Just not sure what a the arching is about.😕