'Not feeling well'

I experienced many disease and cold. But I will pick one of my experiences because it will be to long and boring when I write about normarl and light diseases experience.
I was 2 or 3 grade, and I was very young. I couldn't remember well. Me and my family went to ashley, which is restaurant, and ate many delicious foods and deserts! And I ate brown chocolate ice cream. After that, my family and I went back to home, and did some things, and get ready to sleep. And, my sister said her stomach hurts. My sister's stomach was weaker than mine, so I didn't care about it. But, I waked up at midnight, because my stomach was strange. So I get out of my sleeping place and try to nausea because I had feeling I will vomit. And, when I keep one's eye open, I was vomiting. And my dad waked, and he all cleaned my remains(yuck!) and we both get back to sleep. In the morning, it turned out my sister had vomit too. And my family tried to figure out the reason. And we concluded that it was because of asheley's brown chocolate ice cream. Because the color of vomit was.. brown..(sorry to tell you gross story..)
And, after that time, I always try to scan the ice creams' condition before I eat.