My DS (2) looked like he might have been choking on a piece of boiled egg at lunch. He was crying and spluttering, also retching a bit, but not sure if he was really choking as he was making noise. We got him out of his highchair ready to do first aid but before we got the chance he spat out some egg and seemed to swallow the rest. No breathing issues, coughing or vomiting since and he continued to eat/drink. Seems perfectly happy and normal.
I tend to be really anxious with his health but I've seen some websites suggest you should take a child to A&E for choking even if they've recovered?