Commenting on weight

Im 5'4 and weigh 103 pounds which is not classed as underweight but i an slim and i always have been lately its been annoying me more and more that people think its okay to make comments about my weight almost everyday people are like 'your so skinny' 'your so tiny' ' you need some meat on your bones' like what the hell? If it was the other way round and i was saying things about someone who is overweight and telling them to lose weight it would be completely inappropriate its just such double stardards is it just me that gets comments like this? Its so rude