My therapist specializes in addiction treatment. He showed me how your mood alternates between depression and "euphoria" if you do drugs... It has more of a predictable pattern when compared to bipolar disorder.

I think the conversation came up when I told him I was thinking about doing a certain drug because none of my psychopharmacological treatments were working. (I don't even remember what I was talking about. lol.)

I've never done drugs, though.