You don't have much to lose to be in the healthy range as I am 5'4" and my goal is about 150. I would be leery of taking phentermine at that weight in the first place. I think I would want to hear from another doctor to be on the safe side. Generally, good doctors only prescribe phentermine for seriously overweight patients. Of course, I do not know your specifics, and I am not an M.D., so, there may be a really good reason for you to be on them even starting out at a relatively low weight.

Everything I have read and been told by doctors and other nutritional experts is that a woman should not go below 1200 calories per day as it becomes nearly impossible to get the vitamins, minerals, and other nutrients that your body needs to survive. I have heard of people landing themselves in the hospital by not heeding that advice. Another thing that can happen with super-restrictive (under 1200 calorie) diets is that your hair can start to fall out and your skin can become very dry.

Again, check with a dr or two and see what you should be eating, but I always stay above 1200 calories a day.

As for the reduced appetite, here is my experience...in the first few days, I had a ton of energy and was not hungry at all. After about a week, my energy levels dropped back to normal and my appetite started to increase. At this point, I have a normal appetite. Basically, the phentermine does just enough to allow me to stay in control instead of letting the food control me. It can be a very good tool, but like a saw, if you use it wrong, it can hurt you.

I wish you a wonderful journey.