I'm confused .

So you have hyperthyroidism and the specialist you see should determine the cause of it.  The most frequent cause is an autoimmune disease like Graves Disease or Hashimoto's thyroiditis where the immune system is attacking your thyroid.  Blood tests can determine if you have this and which disease you have.  Second cause is thyroid nodules and the third cause is a viral illness which causes transient excess hormone production and is transitory.  So when any lab tests are done on you always ask for a copy and keep your own file on them.  You will learn what they mean.  There are 3 treatment options for treating this, the first one they usually try is thyroid hormone blocking medication.  The second is Radioactive iodine treatment to kill the thyroid and provide thyroid hormone replacement and the third is thyroid surgery with thyroid hormone replacement.  I personally do not want the latter two treatments and have done everything to keep my thyroid and put my disease in remission.  For me this required antithyroid meds, plus supplements to replace vitamins, minerals and amino acids I lost due to the hyperthyroidism. 

Same here Lucy. My tests have just come back 'normal' and I don't know what to do.

Sorry Lucyball, I misread your postiing about the discrepancy in the two tests.  Results like that can happen with a viral thyroidiitis which is transient.  Do  you still have symptoms?  If so in addition to thyroid tests, you can also check adrenal tests and other hormone tests which also cause symptoms.

Im confused too.  Perhaps it was only just overactive in September and then by the third week in October it had settled down again.  Perhaps all your issues are not thyroid related then.    What are your issues then?