My boy started doing this around 13 months, he is 15 months now. He still drank milk as that was his comfort food but refused everything else!
I hope this article will help you as much as it helped me:
Feeding the Picky Eater: 17 tips | Dr. Sears Official Website | Parenting Advice, Parenting Books & more
With dear son I found that he wanted to feed himself. He also discovered he had the power to refuse even if it was previously his favourite food. After a few weeks of letting him try to feed himself and cooking very simple food (I went back to cooking plain rice porridge) he was back on track, fussier but eating more which was better than nothing at all.
Honestly I think it's just a phase they go through. dear son still has days where he doesn't want to eat his meals and will snack instead, and few days he will eat anything and everything we give him. I am just hoping that he will eat the fried rice I cooked for him when he wakes up soon.