That's how I was around week 6. I would stand up and have to balance myself cuz I got dizzy.
Its normal to feel all sorts of things your body is changing and all your hormi nes make you feel a bunch of new things. Also each pregnancy and each person is different so what you might have felt last pregnancy and was normal for you then could be way defferent now. As long as your not passing out or having it so often I wouldnyt worry but atill let your doctor kknow.