Hang over feeling if not getting sleep.

So I am a mama of 3 girls. Twin 7 going on 8 years old, and a 1 going to be 2 in September. With my twins I had horrible nausea and morning sickness until birth. With the 1 year old heartburn. So I know each pregnancy is different and hes excepting yet another girl. But for all of these pregnancy if I didnt get 8 hours of sleep yeah I was tired but no big deal (as I have suffered from insomnia for years) but this little girl if I do not get 6 or more hours of sleep I get hangover symptoms. Headaches, hangover sickness ( because yes big difference) , tired, zero energy. But the biggest thing is the sickness aspect. Seriously feels like I went out drinking without any of the awkwardness regret( just kidding I would always drink with a responsible adult that would never let me get to far or do strange things). But has anyone else had these things or should I speak with my dr?????