Hi Lydia

I am in much the same place as you. I'm 56, totally with out any metobolsm, and eating no more than 20 carbs a day. How much weight loss in the last three months? Zero! Zip! Zilch! SO, I am now trying to eat more, (loads of calories) as has been sugested. This is quite difficult, as I am not really hungry, but will give it a go. From what I can gather and looking at your statistics, you will probably have to eat well 2000 cals a day, which sounds a hell of a lot to me, but if it works... who cares!!! Try it and let me know how it goes... I will keep you posted on my progress or lack there of.
Keep smiling!!