I am 17 years old and I weigh only 48 kilos. Do I need to worry about this?

Do you think it is normal and it does not bother me in terms of appearance, but some people say that I am too skinny and since I constantly receive comments about my body in daily life, I wondered about it.

I am 17 years old and I weigh only 48 kilos. Do I need to worry about this?
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