Anyone else falling apart?

Ok so I'm only 6 weeks in and I feel like I'm falling apart!  Hard to focus, so tired, crying a lot, anxious, the whole shebang.  Today I was literally nauseous ALL DAY.  If I ate, it was ok for two hours and then it came back super strong.  I couldn't sit still, I had to get up and wander so I didn't throw up.  If this is how it's gonna be for the other 34 weeks, I'll be lucky to survive with my mind intact.  Anyone else feeling similarly??