I think I lost weight?

when I was in primary school i wasn’t the skinniest girl and occasionally the buttons on my skirt and shirt would pop. Wasn’t fat enough to get bullied (some of my classmates did get made fun of for their size), but sometimes people would point out my weight or my chubbiness. When I entered secondary school, I think puberty along with my laziness to cook or buy takeout during the holidays caused me to lose weight. A lot of people then comment on how skinny I am and say things like, “So good.. i wish i was skinny like you!” Even though I’m a little worried for my health, honestly i’m happy when they tell me how skinny I am. I’m trying to work out but I really feel disgusting when I eat too much now. Not anorexic or anyt, I’m still at an acceptable BMI, I’m just.... worried. Also my face doesn’t lose the chubs as much as my body which is kinda annoying. Insecure about my looks, insecure about my weight, insecure about my grades my abilities... gotta go watch life is great now asdfghjkl