Hi Ortega,
Is this translated as Onlanzapine, I wonder? I used to be on Onlanzapine/zyprexa, however, I had never experienced that problem. The problems I had with this one, was weight gaining, and also sleep, maybe far too much sleep.
I know take for me, and on a dose of 25ml, Aripipazol (Abilify -same thing) and I am much better with the less weight gaining.
I certainly haven't experienced body going numb, no.
I would return to your medical professional, to seek further advice.