LB: I can't add much, but from personal experience, when my mother was diagnosed with celiac, part of the initial therapy included antidepressants. I suppose the body goes through some form of detox...but I don't really know.

Plus, I agree with Lisa...This is the time for seasonal affective disorder from light deprevation and you're in a tough part of the world for winter light. I know that when we first moved to Indiana, I was nearly suicidal (for no reason ) in Jan/Feb...but office window was north facing...once I fixed that, I never had the problem again regardless of the season.

What you're feeling is real, I encourage you to hang in there