17 week old

Hi, I have almost a 4 month old. Usually she is more needy and crying or it's always something and now it's like she is a totally different baby to me. She has only cried 1 time today and 1 time yesterday! She is so quite tell it's almost scary, I'm Just afraid some thing is wrong with her y'all? She's been eating and also been sleeping awhole lot, I Just don't know I'm worrying a little bit inside.