Sassy 5 month old??

anyone else have a sassy 5 month old? my son here lately has been super vocal about not liking things. and he used to be a pretty content baby but now he seems to get fussy and whiny alot more and pretty much over anything.. is this about normal since he is becoming more vocal and aware as he is getting older? its probably a dumb question I just wasnt expecting such a drastic change