I am 25 years old not married .I have skin problem like pimples so I consult skin specialist she done blood tests and given aldactone and isotroin tablets since 6 months I am using that tablets from last 3 months I am facing one problem that is brown spotting in mid cycle exactly 14 days of after periods .what it causes. I don't have any pcod problems. I never facing any periods problems. And that spotting is no bad smell and no itching feeling .and I just have board line thyroid but that is with in limits now. I am using thyronorm 25 MCG.