I wouldnt worry, although the medical is just about the last step that they call for, i sent my medical in in february 2008 and only heard from immigration at the Beginning of December 2008. they Will let you know just before you are finally approved, as long as you land in canada within a year of your medical submission, you are safe...if you havent heard anything its a good sign, if you were refused for any medical reason or and reason at all, they would let you know sooner than they would if they were still working on your file.
Thanx mlea for the info.
It really does take some tension out from ppl like us. But, the wait really kills, especially for ppl like me who r ready to move imdtly.
God save the queen !