Aww. Feel for ya.
Your a beautiful woman, and when you see your reflection and you say ” wow I look good ” That’s a fantastic achievement. So many women are unhappy with their bodies. You should be proud!
Your son in a funny, back handed way has complimented you. He knows his mum is looking gorgeous and he doesn’t know what to do about it. His mummy is his protector and provider. Now he see’s you as a confident, beautiful woman with a bit of Ooomf 
He just doesn’t want his pals fancying his mum.
Look on the positive side 
xx