Last night my son was crying a lot he was totally uncontrollable. Finally he is well now.

Is it due to vaccination given on 1 december 2014 fourteen weeks

Yes it may be.. sometimes the vaccine which is IM means intra muscle when moves into the body it causes pain and also body ache.. thats why kids feel discomfort..check for any swelling around the injection area and if there is any fever..ask doctor if you can give paracetamol..if he is fine now then ok..