I was exclusively on breastfeeding until 12 weeks then he suddenly stop taking my feed while he’s awake and taking feed only when he’s asleep. Slowly he was resisting my breast in his sleep too so I started formula milk so that he should get milk either its mine or formula. Now he just doesn’t take my breast milk and whenever i try to give him formula milk he sometimes drinks it and sometimes he wakes up and stop drinking. As he doesn’t eat anything while he’s awake. I’ve struggled so much even gave him my expressed milk in bottle but he refused to take anything while he’s awake. Really so much upset because of him. Please Help