My parents think i starve my self wat do i do?

ok i am 14 i was as skiny as a tooth pick till i turn like 10 or 11 then i got fat was like 150 then and i got taller and last year got on this health kick and lost most of it mean i still got my hips and my and i got a tummy but i am healthy well i stiull been workin out and stuff well my parents think i starve my self but iu don there all ways on my back its anooying i only eat when i hungry and they want me to eat all the time how do i det them off my back??? wat do i have to do? i mean when i look in the mirror i still think of my self as the big girl and i wanna change that so ya