Pain after eating

Au

So today I had two meals, I had lunch and after I ate I was feeling a little sick. Like my stomach was a little off.

Just ate dinner (a small pulled pork sandwich) some Mac and cheese and maybe less than a handful of fried. and shortly after my stomach is killing me. Not contraction but my stomach. I puked up all the dinner but stomach is still in a little pain. It can’t be good poisoning bc my kids had the same thing as me.

What could it be from ?

I just went into the hospital last week and then to go again so soon. Baby is kicking and everything. Right now I’m in the tub soaking hoping it goes away.