Correct weight

The medical recommendation for a young woman who is 5'6 is between 118 and 155 lbs. You can submit your weight and height

RE: correct weight.  Do not use a BMI as it has been proven wrong.  For best indicator is shape.  Bmi i fails to account for muscle.  A athlete may weigh more and be toned wear smaller size because of muscularity and fitness   BMI does not count fat It is a ratio of weight to height.  Under Bmi a person can be out of shape ,blubbery and score in a "healthy" range.  Waist to hip is the way to goThe basic 10" between bust and waist and waist and hip.  But how you look is still the best inticator If you are with rolls of fat you neet to tone up.  weight training to keep the muscle and bone density as well as running, swimming for lung and overall sleek look.

It really depends on your frame, and your body composition.  Here is a good ideal body weight calculator that should be helpful for you.

Best,

Adam