Hello You are taking tyronorm for thyroid , so take it continuously . You are a patient of PCOD and want to conceive . For pcod , your doctor advised you take metformin ,which is causing nausea and vomiting. Some times medicine don t adjust for first few days and causes such symptoms ,so need not to worry , this will adjust in your body , then you will not feel any nausea . One way is to take pantoprazole on empty stomach , twice in day , as this will subside nausea and vomiting side effect of metformin ( while metformin is the best after meal ). Still no relief then consult your gynae for pcod treatment as sometimes few gynaecologist advise oral contraceptive pills for pcod cases ( as for treatment). Cysts are often caused by hormone changes . Using birth control pills can sometimes help regulate hormone levels so that the cysts can be taken care of. Your gynae will stop the pills , as long as there are no medical concerns, you should not have any problems with FUTURE CONCEPTION. So I recommend you consult a gynaecologist ( 2nd opinion ) and get his opinion regarding pcod and pregnancy. Good luck.