Does throwing up right after you eat hurt your calorie intake?

I'm freaking out. I've started being really adamant about keeping a food diary and trying to maintain a 1200 calorie a day limit. Today, I had a great day in terms of staying within my range, when I had a craving for carrots as a snack after I ate my dinner. I ate about half a bag of baby carrots and got so nauseous that I threw up. What's scaring me is that I could see my dinner in my vomit. I've read about your body going into starvation mode and slowing down your metabolism if you go below 1200 calories a day. So what happened when I threw up? Am I screwed? I really didn't feel hungry after throwing up, so I'm worried that I messed up my food diary now. Do I subtract my dinner, or divide the calories, or what? Please help! I know this is just one day and tomorrow I will be fine, but I cannot sleep until I know how the digestive process works.

And why did raw carrots make me sick? I thought they were supposed to be a smart food or something. Not even the greasiest steakhouse burger got me that sick. Sorry for the rant. Also, I'm 223 lbs, 5'4 if that means anything.