I had a partial thyroidectomy done 20 years ago for an overactive thyroid My hormone levels have stayed within the normal range all these years but after a recent blood test my doctor advised that the levels were a bit on the low side and prescribed 25mg of Eltroxin daily. I don't feel any different. Prior to taking this medicine I was suffering with terrible hot flushes which were accompanied with sweating, palpitations, nausea all over tingling. These events occurred at least 6 times a day often waking me up at night. I also suffered severe hair loss, brittle nails and moderate weight gain. Mood swings were also present. I was hoping that these symptoms would disappear when I started on the Eltroxin but after six weeks I'm afraid nothing has changed.I still have all the symptoms and am now wondering if menopause is the cause, which was my original belief. The sweating etc symptoms presented 2 or 3 years after the thyroidectomy. The hair loss and nail splitting has been going on for about 2 years. Anyone with a similar story or advice?