Hi im_so_sick. Some people who have Hashimoto's have other test results in the nomal range, but treatment is still warranted. Also, there is a lot of room in the normal range, and many people feel best when the Free T3 and Free T4 levels are in the upper 1/3 of the normal range. Have you had the Free T levels tested recently? Many doctors do not run these tests, but they are very important. If you have not had them done recently, I suggest getting them.
I had hypothyroid symptoms for years and was repeatedly told my results were normal and I did not have a thyroid disorder. Finally when the antibody tests were run, they were extremely high indicating Hashimoto's. Then I was under-treated for a long time because doctors were only evaulating the TSH and not the Free T levels.
I finally found a great doctor by calling a compounding pharmacy and asking the pharmcist if he could recommend a doctor who considered the Free T levels and not just the TSH. This doctor has helped me more in a few months than all the others combined have in years. I suggest trying this.