my son also cry a lot. 不依他心思就要哭, 不按他想的玩要哭,he cries when wrong person(dad or grandpa) hugs him. when he was 5.5 months old, if a stranger stares at him he would cry(now he is much better after lots of social exposure) and if he can't make something happen, for example, if he failed to figure out how to play a toy after a lot of tries, he got really frustrated and cry . he is only 15 months. not sure what he will become when he is 2.