Hi pcos wont cause lactation issues.for
thyroid might be please repeat ur thyroid profile blood test to know whetger to take medications or not.tge otger things to do are increase ur hydration 3 to 4 liters of water ,keep the baby skim to skin contact , feed regularly 20 minutes each side everytime make the baby suck ,have lactare capsules thrice daily.and if ur bany passes 5 to 6 times urine freely and passes motion atelast within 10 days once gains weight and sleeps more then tats a good sign ur feeding is adequate.