Answer:
I am an English word with 3 consecutive double letters.
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What am I?
I belong to you but others use me more often than you do
In Paris but not in France the thinnest of its siblings.
People need me, yet they give me away every day. What am I?
Those with eyes bigger than their stomach will definitely leave the restaurant with one of them. It is named after a house pet as well.