((((((((((( Inny ))))))))))))

My dad has been hassling me too about my weight and I am the same height as you and currently 127lb (BMI 24.8) though I have lost a few pounds because before I was BMI 25.6, so I too am planning to lose weight...

I think the way you'd probably be less hassled about how you look is if you pretend you don't care. eg if somebody said to you, 'you look a bit overweight - why don't you lose weight?' you could tell them, 'I like myself like this - I think it suits me'. It might not be the truth but your weight is none of their business anyway. Plus if your family is hassling you about your food it would be better to show you are not vulnerable when you go - eg look like you're not counting calories or scared of eating certain foods, etc. If they saw you are sensitive about your weight it gives them a target.

plus different people have different body types, maybe your mother has a slightly different build to you? And according to her she is slightly underweight anyway. Maybe she has some problems with eating, too?