looking for some input thank's

[ann4512]

was at hop last week doc said i was in normal range tsh 2.2 .have been feeling great for the last 2 weeks but since yesderday just feel yuk can't put my finger on it,i felt much better when my tsh was 3.12. any input would be great thank's xxx

[laura1967]

Unfortunately only doing a TSH doesn't give a complete look at what is going on with your thyroid. You also need to have your free t4 and free t3 done. These are the actual active thyroid hormone in your body. TSH shows mostly pituitary function.
Your tsh can show in normal range, and you can at the same time be lacking in thyroid hormone. Or you can have a conversion issue which will cause you to suffer hypo symptoms with normal tsh. The only way to know this is to run the Free's.

[ann4512]

thank's for your help,they did do  t4 and t3 just don't no what they were will find out thanks again xx ann

[gimel]

Note that laura suggested that you need to know your free T3 and free T4 levels.  These are different than total T3 and total T4.  The frees are the active thyroid hormones and free T3 is about 4 times as potent as free T4.

Triiodothyronine (T3) is a thyroid hormone that circulates in blood almost completely bound (>99.5%) to carrier proteins. The main transport protein is thyroxine-binding globulin (TBG). However, only the free (unbound) portion of triiodothyronine (free T3) is believed to be responsible for the biological action.

[ann4512]

thanks for your help xx ann