LO is 5 months old. When he was a newborn he had an occasional lip quiver which I was told was normal for newborns. It went away (I think? Or I stopped noticing) and seems to be back/ still having it. It happened twice when he woke up today from his car seat and brought in from the cold (but a few minutes afterward)and then again when he was crying for food. I feel like at 5mos it should be gone by now. Any experience? Should I be concerned? His next ped appt is in January. I'm not sure if it's worrisome enough to make another appointment or I'm just being a paranoid FTM. Thanks, Bees!

ETA: wrong board - not sure how to change that.