I'll start!

My son is 2.5 and went from eating everything to refusing everything, no joke. It is a stressful part of my day when I have to prepare meals, because none of the usual tricks work, like helping him prepare the food, putting it on a pizza, etc.

He all of a sudden started refusing foods at 18 months and has dwindled himself to a small list of foods. I keep hoping it will change as quickly and suddenly as it did the first time, but a year later, we're still dealing with it.