Toddler with food poisoning?

I don’t know if that’s for sure what’s going on, but his tummy is upset. He doesn’t have a fever but was sweaty earlier, and just wanted to go to bed.

Has anyone gone through this with a toddler? He’s 4. I’m sure I’ll be feeling I’ll too since we are the same things today and yesterday.

My fiancé says food poisoning is deadly to kids and now I’m absolutely terrified. But I also don’t know if that’s correct.

EDIT:

Thanks for the replies! He’s feeling much better this morning. We did get him some pedialyte last night. I have no idea what it was but I’m glad he’s feeling better