The key to this is your waking and mid-afternoon body temperatures. These might suggest that rT3 is blocking fT3. Otherwise with high rT3, you should be warm and having some hypo symptoms.
I don't know, but speculate that rT3 might blind the hypothalamus to the fT3. Never seen anything addressing that, so its guess work for me.
fT4 is also above mid-range.
If there was a thyroid hormone producing nodule pushing up fT3, fT4, TSH should go down as you expect. I have never considered the implications of a small degree of hypo coupled with rT3 - another "speculative" idea.
Whats going on with fat gain/loss?
Feel edgy or agitated?