I Am Naturally Thin and People Think I Am Anorexic

I'm 5'5 and 114lbs and small built. I get criticized for being thin and get told to eat. I get called ,"skinny ass" and "twig".
I wish I can put on some weight. I have curves coming in (thank God).
What girl wants a body of a 12 year old? Just saying.
Both my parents are slender. Well my dad's been chubby but still.