Shaky/dizzy

Misty
I'm 17 weeks and started feeling shaky and dizzy everytime I eat. Wierd part is that it feels like it's on the inside. I'm not shaking out the outside but feels like I am. I saw my dr yesterday and go back in 3 weeks. They didn't do any test but mentioned I might need to do the early glucose testing. Anyone have any ideas? It's hard to function when you feel like you are going to pass out all day.