I have never spent excessively or impulsively but do you think this is a bad sign for you? Are you on meds... maybe you need an increase or change? Of course excessive/impulsive spending is a HUGE warning sign with bipolar disorder. I don't know if this is behavior you typically see when you're about to cycle but I would stay tuned and call your doc if things go down hill. I wish you lots of luck and hopefully you get things back under control.