Talk to General Physician on I Am Asking For My Father Loss Of Appetite

ASALAM O ALIKUM Dr merey father ki age 59 Hein unko eid Kay 2nd day say on off fever hei aur halki si khansi bhi humey phelay doubt tha Kay covid hei (he is vaccinated) but hum nay family Dr say pocha hei he said Kay nhi hei covid unhon nay Kaha viral hei but aik cheez Jo nhi samjh arahai aur jiski wajah say hum sab bht pareeshan Hein wo yeh hei Kay baba ko bhook nhi lag rahi hei unki diet achi thi but ab nhi kha rahey Khana srf raat ka Khana khatey Hein wo ab wo bhi bs thoda sa jesey Kay aik full plate Mei say 4 to 5 spoons bs so rahey Hein Baar Baar jab Kay MA achay khasay Active they fatigue hei bht zyada we all are very concerned can you guide us what to do or what do you think about this condition ?? Plz reply as soon as possible JAZAKALAH