Anyone else get randomly sick?

Michelle
I'm almost 5 months and the morning sickness for me has been gone for quite a few weeks now. I was just watching Grey's anatomy eating an egg sandwich with milk when suddenly I felt like I had a big burp. I burped and then realized very quickly that it felt like I was going to throw up. I made it to the bathroom and threw up the half sandwich I got down before this happened and milk and then some stomach acid too. I don't feel sick and i didn't before either so I'm kinda confused on why the heck that just happened?! Anyone else experience this?