Did my nausea just come back?

I'd been feeling just peachy. Checking off the days until my first trimester is OVA! But then, all of a sudden, I sat up in bed and threw up on the floor. Of course, I'm mad at myself for not going to the toilet. But, I thought that the morning sickness (at 8:00 pm) was over and done with. It's like I'm going backwards. I have so many aversions again. I thought it was supposed to be smooth sailing now. Am I the only one? -TwinToter