Hello PCOD is a metabolic syndrome that can occur in even slim built people . You can make a routine to work out 30 mins a day Like running walking cycling or dancing any body work out Which improves insulin resistance Add more fruits and vegetables to your food Add protein eggs and nuts You may require a consultation with gynec to asses with a scan and to regularise periods doctor will prescribe you a cycle of hormones If you are on overweight Good exercise and weight loss can improve

If irregular periods due to PCOD, then start treated with OCPs and supplements like myoinositol.

Regular exercise & weight reduction is best way Life style modication & healthy diet with more fruits (papaya) salads & leafy vegetables & milk.... Can consume flax seeds & vit d supplements too