My 1 month 11 days old baby sucking his finger even after feeding.I am assuming it as his hunger and feeding him which eventually leading to vomiting later .is this normal ? how can we handle this situation.

A. Kids have this habit of sucking on the thumb or finger it has got nothing to do with hunger it is just a common habit most of the kids have so you just have to keep taking hand and thumb out of mouth regularly and over the period it will be better