Just like those who suffer metabolic issues due to speed and other other recreational drug use, duromine and a lot of those other weightloss drugs won't help because it will actually damage your metabolism moreso. Have you been to the Dr to have your metabolism issue checked out? A dr should be able to do some blood tests to see what your body is doing, and what it could possibly need.

And hon, I mean this with as much love and light, but please be careful. If you have a history with anorexia and you are already obsessing over .1's of kgs that's not good. And I know with my height (1.65m) 52-54 kg would put me in the unhealthy weight range using the BMI. I have a few friends who have suffered anorexia, including a SIL who suffered bulimia so I do know the struggle you've been through, but it is a struggle that is life long