Since you didn’t include your physical data, I can only answer generally. In regards to calories, perhaps you overestimated your activity. Most people are sedentary i.e. sit or stand most of the waking day. Go back and re-evaluate your activity hours.
With regards to your weight, the healthy range calculated is correct. I do not know what table or calculation your doctor used to recommend a healthy weight for you. Since it is a range, did you pick the upper limit of a healthy weight for you or did you read about your body frame size relative to where you fall in that weight range?