2nd Vaccination on CNY day 3

We brought Kesler for his 2nd vaccination on CNY day 3 as it is a Sat. As it is CNY, there is not much ppl. We waited for around half an hr. Dr Keoy check if Kesler's neck is strong by holding his chest as if Kesler is flying. Surprisingly, Kesler hold his head up high! He is unable to do that when we put him on his tummy. Dr Keoy said his head might be too heavy or he is just too lazy and will hold it up for a few seconds only. However his neck is consider very strong now. Kesler is not scared of injection, just like me! He will only cry for a few seconds and will be ok when you carry him.
He is always so happy after his vaccination?!