I dont understand my body

I don't seem to understand my body nowadays.

I am now 8weeks pregnant. Dr KT Tan say morning sickness symptoms usually peak during 8-12 wks. Now feeling nausea can mean 101 thing: I could be too hungry, too full, too tired, or maybe it's just because there's an unpleasant sight, smell or maybe it's just that I am going to vomit.

I just spent half hour tossing ard my bed at 5.30am because I can't decide what the churning feeling in my stomach means. am I hungry? or I need to go toilet? or I am tired and should just try to sleep some more? maybe I am thirsty?

Sigh, I am looking forward to the end of the month for a more  normal me.