11 month old not taking his bottles

Hi! My son is 1 on the 22nd and I don’t have an appt until the 25th. He’s slowly been refusing his bottles, but was still chugging down his morning and bedtime ones.. last night he had dinner then before bed he wouldn’t drink any of his bottle then he slept like 12 hours which never happens then he refused his first bottle in the morning too. I guess I’ll just see if he wants food first thing now but is this normal? It’s making me kind of emotional 😭