As per your height and weight,you are nearly normal. Are having a sound sleep ? Be happy with whatever you are having. I can give pills but i would not suggest. Let me know your periods and your water intake. You are more worried for wt.reduction. Married ? Children ?
Next Steps
Let me have the feedback. I suggest you to exercise/walk for 1 hour daily or 12 Suryanamaskar. Consume warm water only and take fruits and vegetables more. If possible, once a week fasting (fruits and water)