I know some kids go through a picking eating stage, but can it happen this young? DS #1 has always been a picky eater from the beginning, but DS#2 would eat anything we put in front of him from the time he started eating table food and now all of a sudden he's refusing to eat.
Re: 17 month old refusing table food?
How long has it been? If only a couple days, it may be that he's cutting some teeth, specifically his molars - and it is just really sore/hard to chew.
I'd try some soft things - yogurt, banana, pudding, oatmeal, mashed potatoes...and see if it gets better in a few days.