Tom, as previously suspected, your FT3/RT3 ratio is low, sitting at 13.08. This indicates that your T4 is compensating with higher than normal conversion to RT3. Notice your FT4 is sitting at the lower end of the reference range (27%) and FT3 is to the right (46%). This is telling you that T4 is converting, but more than normal is redirecting towards RT3.
The other variable is your TPO antibody lab. No, it's not over the range, but it's right there at the top, which IMO would indicate that there are some autoimmune issues. This can actually be treated just like any other Hypothyroid treatment program, however, you definitely need to get the iron situation sorted out first, along with cortisol IF the cortisol lab illustrates issues. Again, there's some good info with STTM.com on all of this.
Are you on an elemental iron supplementation program? Discuss some serious Vitamin C dosages with your physician, along with selenium, B12 methyl & iodine. Tom, what's the status on the cortisol test?