lungad o pagsusuka

Yung baby girl ko po ay pina check up ko kasi after feeding prang nilalabas nya po yung gatas d po ako sure if lungad yun or pagsusuka (can anybody pls differenciate lungad and pagsusuka) At 1mth plng po baby ko after check up her doctor prescribed vometa (Domperidone) drps must be taken twice a day But then her milk po talaga bonna but sabi ng pedia nmin mas maganda yung s26 Gold.after nyu ni shift talaga namin yung milk And then now the same padin after breastfeed ko or milk formula naglulungad cia or suka. Can u pls help me Worried talaga ako thanks po Parati rin po nagugulat yung baby ko at nag so strong po subrang malakas ok lng po yun?