I'd be really careful with that. I paid for Canada Post's Mail Forwarding service when I went for a few week's vacation abroad (forwarding was to my friend's house) and they lost my NOA, MSFAA, CBSA report (that ended up being returned to CBSA)... None of my mail ever got to my friend, or to the house I had been living in (I know the people living there).
I find it easier to just inform CIC of the change, but sending to another office would cause delays. I don't think updating the address within the same office jurisdiction would cause any delays (I changed my address within the same city on the 24th of August, on the 26th it showed the change and on the 27th I received a notice to appear for the test, heh), so one option would be updating the address to the one you want the mail forwarded to, but then that might raise questions if the address there and the one on your IDs don't match.
Otherwise, I just agree with arambi. The most important thing is your improved health.
Take care, Anthony_nyc