Are your T3 and T4, free or total?
Which antibody tests were done? Please post any tests you've have, along with results and the lab's reference ranges, since these are lab specific.
It's not uncommon for some with Hashi's to have labs in the "normal" range on the lab report. The problem is that these levels may not be "normal" for your body.
When you say normal range, what are the exact results with the ranges please? Normal range doesn't mean normal, especially for hashimoto patients. When my levels are optimal, I have extreme issues with body temps and need the extra salt as well.
A Hashi patient needs to be in the most optimal ranges to help control symptoms from the antibodies.