Has anyone ever hear of someone being on synthroid for 3 yrs. for hypothyroid and sunddenly their thyroid becomes normal?? My doctor took me off synthroid for 2 weeks and then did alot of test and eveything came back normal. I thought hypothroidism was for life?

I would keep an eye on it. You never know. My free T3 was only "slightly" low, and it just tested normal, but my symptoms were kicking my @$$, so I'm terrified of missing a dose! Don't abandon your endo yet.


Good luck!

LIZARD

When I started synthroid 3 years ago, technicaly, I was in the normal range. The doc. started me on a small dose of syntrhoid because of my symptoms. I still have the same symptoms. I have been playing phone tag with him. I hope he wants to put me back on somthing for my thyroid.

mostly from women after they deliver their babies.

Hypothyroidism is often diagnosed after a pregnancy, and when done then,
can be a temporary thing. The thyroid can wake up with time and be normal.
I had a friend have this happen.

If you take hormone when you don't need it, it just suppresses your own
TSH and you then make less, and it all balances out with time.
Remove the hormone, and you may go back to normal yourself.
(of course people with damaged thyroids don't spring back that way).

Were you on the synthroid for Hashimoto's autoimmune thyroiditis?
If so, then yes, your thyroid function can change over time.
Hashimoto's thyroidiits is a chronic, life-long condition where your white blood cells produce antibodies (special proteins) that attack your thyroid gland.
Roughly 5% of patients with Hashimoto's thyroiditis lose their thyroid function per year, so most patients actually have some thyroid function even though their gland is under autoimmune attack.
But thyroid levels can fluctuate over time. It is sort of a balance between how badly your immune system is attacking your gland, how well your gland can still produce thyroid hormone (i.e. how much of the working gland is still left after the immune destruction), and how much your brain responds to the destruction by the feedback loop:
When your thyroid level drops, say from autoimmune destruction, your brain senses this and releases TSH or thyroid stimulating hormone. TSH in turn acts on your thyroid to tell it to crank up it's thyroid hormone production.
Many people with untreated Hashimoto's disease will have high levels of TSH, since their brains are trying to tell their thyroid to crank up the production of thyroid hormone.
Typically, the endocrinologist will check your TSH level and use this to help decide/monitor how much thyroid hormone to give you. Many endocrinologists keep the TSH at the lower end of normal- about 0.5... This can help keep you energized, and it can help prevent a goiter from forming (where your thyroid gland gets too big because it is trying too hard to make hormone)
If your TSH drops too low on the thyroid replacement, they may back of for a while, since it is very dangerous to have too much thyroid hormone (it can cause a lot of problems).

As if this weren't complicated enough, sometimes with Hashimoto's thyroiditis, your gland can just dump out large amounts of thyroid hormone, and you may get temporarily too much thyroid hormone in your blood. This may drop your TSH temporarily too. It's called "Hashitoxicosis".

And then even more complicated are the rare cases where you can actually have not just the antibodies of hashimoto's disease, but those of Grave's disease as well, which bind to the TSH receptors and stimulate (or sometimes inhibit) them...

It's a complicated illness with so many reasons for the thyroid hormone levels to fluctuate.
Great fun, as thyroid hormone controls the metabolism and functioning of virtually every cell in the body!

You have my deepest sympathy!

My endo just checked; FSH, LH, cortisol, prolactin, T4, T3U, TSH, T3 RIA and anti bodies. He just left a message on my machine saying everything was normal. Iam going to call him form work tomorrow and ask for copies of blood work from my very first appointmen and the results of this last test.

Thank you so much for the information everyone.

I am trying to find out more info on the bacteria/mold strain causing Hashimoto's Thyroiditis. I was exposed to very high levels of this junk for 2 years. One of those years i was pregnant..he was born with a birth defect called Hypospadias. So sorry my spelling is horrible. I have not gotten the kids tested for Hashi's yet. Do you know anything about children with Hashi?