1 year old is super attached to bottle and won’t eat food or take sippy cup

My Son just recently turned 1 and all of a sudden is drinking double at feedings (12 ounces) of toddler milk and has out of nowhere hated eating food. He turns his head from sippy cups and gets mad now when I offer them. He knows how they work and knows that milk comes out of them but only wants his bottle.

Even things he used to love he spits out now, he only eats oatmeal for breakfast. He’s also super mad when I try to feed him.

HELP.