Baby is not increasing her weight, she is of the same weight since she was 7months. She is almost 1 year old now and still 8.5kgs.. Is it normal, please suggest

My daughter is 15 months old, very active. However her weight is not increasing. She is only 8 kg. Her birth weight was 2.25 kg. What to do?

My baby is not gaining weight from her 8 th month. She's 1 year old now. What to do

My daughter is 15 months old , her weight is 9.5 kg she never likes to eat anything herself including food fruits and milk. If in force I make her to eat something she vomits it. Still I am feeding her. Is feeding is the reason for this? She is very active. Why I am so afraid is because just before two months back my 7 year old daughter passed away, she suffered from Rickettsial, meningitis and dengue. My younger daughter is missing her very much, is this also be a reason (because before she was eating without any force)? Please answer me.