Dd is 3 weeks old today and has a stinking cold. She has regained her birth weight (a very healthy almost 9lbs) and was full term. Temp is only slightly elevated, but she's struggling to feed and has been quite vomity overnight. She's very drowsy and not latching on brilliantly because she's bunged up. She isn't really asking to be fed but I keep offering. She'll sometimes feed for 5 to 10 mins but just wants to sleep mostly and for the last 2 feeds has vomited. She's still having dirty nappies though so doesn't seem dehydrated. I'm pretty certain it's nothing more sinister than a cold, would I be overreacting to take her to the GP/ walk in?