4 months on Spironolactone and almost constant spotting with my period, is this normal?

I have been on spiro for almost 4 month. It has absolute started to ruin my life in the past month I've had ridiculous insomnia, mood swings, nausea, fatigue and period spotting for 10 days around the time my period was supposed to start, then 9 days later I started spotting again. Enough for a pantyliner. It has been 5 full days and still spotting. I hate it! Is this normal ?