Hi Goodmorning Doc..i Would Like To Ask My Mother 78

Hi goodmorning Doc..i would like to ask my mother 78 yrs .old she diagnose with.high intensity posterior sonic shadowing with 0.3cm.stone i n here gallblader.our Doctor suggest we need to remove it thru laparoscopy.i need to.know how serious is her condition and also.shes out in the hospital 1 week aleady.but then when she intake food or liquid she vomit.i wondering why the food she intake cannot digest inside and she vomit it..thnk you..