Don't worry too much about weight.
Look at your body and see how much excess fat you have.
These days when people say "I have gain weight"
They are actually saying " I have gain more fat"
When they say "You must not put on weight"
They are actually saying " You must not put on more fat"
Fat is weight to them.
That is misleading, because fat and weight are two different
things.
Therefore even if you weight 100kgs it is ok, if you are mostly
muscles.
And if you weight only 85kgs, it does not mean its better.
If you have a huge spare tyre around your waist, and your body is
soft and jiggley, that is not ok.