ngl doctors and specialists are cope, they always say the same bullshitI cannot say anything since I am not a professional to deal with people like u. 21+ age is what I consider adult.
You should once meet a doctor who specialises in these matters. Ask them if something is wrong with you or not. They are the ones who can make sane judgements. Also visit some lab where they see your muscle mass, skeletal mass and bf%.
Below 18 bmi is not ideal at all.
