It's okay.
I used to smoke marijuana but not on a daily basis, whenever friends would bring.
Once a year I'd drop acid (LSD) with few friends in nature-party.
I love my wine from time to time, nothing abusive though.

I don't abuse drugs as I used to like 5 years ago.

Rapid Cycling ? I'll read about it a bit more.
I haven't met a Pdoc for years now.. I know I should, it's just ... bit complicated.