1 year old won't eat anything

Gi

Since yesterday afternoon, he hasn't wanted to eat ANYTHING. He didn't even want dinner. Now it's breakfast. But he still shows me he's hungry. I've tried all different foods and he just screams. What the heck do I do?? Just let him starve?? I just got him down to 1 bottle from 3 a day. Should I revert and give him bottles again?! I don't wanna do THAT...