Hello.....,hypothyroidism is due to decreased thyroxin harmone. It s commonly associated with weight gain and irregular period..... One need to take medications regularly.. Its long term problem..you should limit their intake of broccoli, Brussels sprouts, cabbage,cauliflower, , turnips,......No specific diet to hypothyroidism as such.. But I think you should increase dose if it's not under control. Consult general physician.