Why me?

Everything was going so smoothly. Michelle and baby Varick came to AZ to visit before she has to go back to work. Yay! We had dinner and dessert here on Sunday night. The kids got to play together and had a ton of fun. Everyone had a good time. When everyone went home we put the kids to bed. A while later Kent went to bed. Just as I was getting ready to go to bed Justin called me from upstairs. Drew had thrown up everywhere. He had a piece of chocolate cake for dessert. So gross. I was totally gagging as I cleaned it up. I woke Kent up to take care of Drew because he was covered head to toe in that mess... so, so gross.
When everything was cleaned up I went downstairs and threw all the dirty clothes, pillows and blankets into the washing machine. I double washed everything just to make sure it was really clean. Drew came downstairs because his tummy still hurt, and we were up until 2 so his stomach could calm down. The next day he spent most of his time in the bathroom or on the couch/floor like a slug. No more vomiting, though.
Yesterday he slept until 12:44. I had to wake him up three times before he finally got out of bed. He so did not want to get out of bed. He finally ate some food, and then he was totally fine. The kids came home from school, then we went to my mom's house to visit Michelle, Varick, my mom and Melia (my niece). Things went well when we got home... with the exception of Trevor being grumpy. (Which happens more often than I'd care to admit.)
Fast forward to this morning. I go to Natalie's room to get her up, but she's not there. Sometimes she moves to Justin's room and sleeps on the floor, but she wasn't there. Weird...
I go downstairs because the lights are all on, and I hear the kids talking. Both Trevor and Natalie said they'd been up for several hours because they were throwing up. They're both laying on the floor trying not to cry every time they get sick.
So our plans have changed for today. It's an early release day, so we were going to go do something fun, spend some time with Michelle. This afternoon I'm supposed to have scouts. Tonight Kent and I are supposed to go to Les Miserables. Now I suppose all of that's in jeopardy. I canceled scouts because it seemed like the right thing to do. The other things- we'll have to see what the rest of the day holds. Natalie is whimpering on the floor, and Trevor is zonked out on the couch. I think I might go back to bed and start my day over again.