I agree -- see a doctor! (Lucky you're in Canada!) I have depression also, and have been treated for "dual diagnosis" -- depression with alcohol abuse. They're a bad mix!!
I take anti-depressants and alcohol just counteracts them, so they don't work. (Because, as I'm sure you know, alcohol is a depressant.) Really, when I drink it's like I'm self-indulging in introspection and I ruminate... It may feel good for a while (even great for a while) but eventually it brings me way down.
You say you're back to binging? Do you want to stop?