Affected by Roaccutane's bone denisty side effect, any cure ?

Hello,

I've been having major acne problems since I was 15, I've been to dozens of doctors and most of them were either suggesting Augmentine or Megamox anti-biotics and other bacterial defense pills, anyway I finally went to this doctor a year and a half ago, she suggested "Roaccutane" after checking some blood tests, after finishing my 8 months course of a 2 pills of 20mg per day all acne problems were mostly solved 85% which is an acceptable rate.

Two months later I began to realize I am ways weaker than before, I started having problems sleeping, depressed but all of that could be overridden with knowing that its just from the medicine and accepting that, at this time I began also to realize that my body is not as what it was before, my rest and hands appeared to be smaller and my overall body, my bones are sort of weaker beside being smaller than before, I started taking protein suplements and stressing in eating and drinking vitam rich food and going to the GYM but its like 4 or 5 months now with no hope, I am having no trust in doctors any more so I thought I should ask here first for advice on how to recover my bones problem.

Thanks.