Do you think everyone sees themselves differently than how they truly look?

Like, does everyone look in the mirror and see something that is totally inaccurate in comparison to what everyone else sees? Kind of like how those who struggle with anorexia see themselves as fat while the rest of the world view them as unhealthily underweight? Or like that age old question, “does this make my butt look big?” Random example:

I am skinny. I have no butt. My boyfriend compared my butt to another girl’s butt. I told him that there was no way on earth my butt looked that big. He said it does. lol bad example but that is the most recent I have.

Or do you think it is the opposite where we actually see ourselves for the truth and others see something different?