I was diagnosed w/hashimoto's at around age 50. I am now 56 and have been on .075mcg generic levothyroxine for the past 6 yrs. I am also past menopause but continue to have hot flashes. they subside for a while but about every 3 months or so come back w/ a vengeance. i am taking various menopausal vitamins and supplelments, but those have stopped working and again the flashes are back. i am now beginning to wonder if the hot flashes are related to the thyroid and not menopause. Would taking a brand name rather than a generic drug help? I do not take any other drugs and don't have any other medical issues. Any suggestions would be greatly appreciated.