Uy, common ito sa 5-month mark, marami sa amin napansin, parang nag-switch lang ang babies sa playing rather than eating, honestly frustrating! Have you checked with your pedia kung may teeth coming in or if there's anything else going on, kasi sometimes kahit formula fed may phases sila ng decreased appetite, pero mas safe na i-consult para sure. A few of us tried offering smaller, more frequent feeds instead of waiting for the 4-5 hours, at nag-help din when we fed during the day when baby's more alert instead of forcing it at gabi, let the night sleep be, kung gusto siyang matulog that's okay na. Your lo is probably just going through a phase, but definitely get your pedia's take para peace of mind.