Are you on metformin?

Do you get headaches from it?

I never thought too much about it until recently, but at my last appointment my psychiatrist asked about my metformin dose, then asked if I've been getting headaches, and I just automatically told her no without really thinking too much about it, but upon reflection I HAVE been getting a lot of freaking headaches as of late! I have one right now! I take 2000mg a day.

I don't know if the two are connected or what.