Grunting baby...

Kate
FTM, night time feedings, i will bottle feed him his formula and after every feeding, he burps plenty and as soon as he's in bed on his back with his pacifier he grunts, constantly. I don't know if it's him trying to go to sleep, a stomach thing or if he's gassy or has to burp? I pick him up and he stops instantly and he's fine. Anyone else go thru this?