Im getting skinnier!

we went to mall this morning. i bought so many things.. we running out of food kase, so yun. i get more food for us.. hay, i miss my body before.. im getting skinnier you know! how can i gain weight again kaya? what do you think? you know how to gain weight? give me some tips naman.. hehe para i gain kahit little fat lang.. i wish bumalik yung body ko before, hayy napaka picky ko kasi kung kumain.. how can i change kaya yun? i can't forced myself eating alot of food. when i'll try i get food sickness! will throw up all the food i eat!:( anyone out there can help me how to get fat? how to ignore eating a little?