Tsh & t3 t4

SO i recently had my TSH levels checked. I didn't get the exact number from the doctor but she told me they where normal.

Now correct me if im wrong but the thyroid (excretes?) 2 hormones T3 & T4.

The TSH is the levels of both combined, is it possible to have way to much of one and way to little of the other but the total level comes back normal? I just feel this was a basic test cause it only cost me $3... Any insight.

I would take it that if your TSH is in range then you aren't hypo or hyper...but is there any truth in my question above?