This pregnancy is different!

Tired absolutely! Peeing a lot absolutely! I was so sick with my first! This time one day I am fine next I am nauseous or I will get sick a little.. I am always hungry!!! I am going on my 6 wk and nervous cause I am not really that sick! Besides being bloated and occasional sore breast.. Is this normal?? Not that I want to get sick all the time but will make me feel like I am having a healthy pregnancy