My periods are very painful since childhood. I am facing some irregularities in my periods from the past 6-8 months. I had a 28 day cycle before. But now I get periods sometimes 5 days early and sometimes 5-7 days late. Period pain starts around 28-33 days but I get periods after 4-5 days of cramps. Also the period pain is not bearable. I get very emotional, stressed and irritated during these days, I also face gastric issues sometimes. My vitamin D is low and I have started taking the tablets, thyroid and calcium are in the range. Please guide me a solution to these issues. Are these symptoms of pcod?