I didn't have much morning sickness, that I can remember but in my first trimester, we were travelling so I blamed it on jetlagged.

I too don't feel "pregnant", though it is hard not to notice my belly/basketball, and the inability to bend. And accidently open a door not wide enough for me to fit.
Everyone is different.
But I know is to keep the fluid up, cos it makes a difference to the way I feel