Damn dude why do you need medical marijuana if you are in Canada? There are no criminal penalties for posession, and you will barely get a slap on the wrist if you are caught growing. It's so much cheaper in Canada as opposed to the USA (which is where I am from). And as far as I know, Canadians don't get drug-tested in the workplace as that violates the Canadian constitution. I've also heard that Canadian government pot is schwaggy and bad.
In the USA, employment drug-testing is the number one reason why people can't use medical marijuana. Even if you have medical pot at the state level, the federal laws still allow you to be fired for using medical marijuana based on a positive drug test.
Well good luck man. I will be praying to whatever diety exists for your medical pot. Oh and we pretty much use medical marijuana for the same purpose.