Hi and welcome! I think we‘ve all been worried first time cocker Mums (or Dads) at some point, especially those of us who took them on a pups, you end up watching every move!
Your little one has just left his mum and the company of his siblings and needs to find his paws in new surroundings with new smells and new people, its perfectly normal that he‘s quiet and a bit subdued and just seeks the warmth and security that he‘s missing. Also, the vaccinations can sometimes also make them feel a bit off colour. I‘d advise just allowing him to come around in his own time, if he likes to cuddle that‘s ok, keep things quiet for a few days, you can give him the opportunity to play gently for a few minutes but keep the sessions short and don‘t push it if he‘s not interested.
Enjoy the peace and quiet though, I guarantee in a week or so you‘ll be wondering whats hit you!
- Puppyhood is such a lovely, special time that passes all too quickly so enjoy every minute, there‘s always someone on here to help with any worries you have, no matter how trivial, so you‘re not on your own. Best of luck, look forward to hearing more!