TSH should be nearer to 1.0, the ranges are bogus.
Could be from not using iodized salt?
Do vitamins have 150mcg iodine and selenium?
Could problems go back 10 years to the prostate issue? Possible cause if medication was 5-alpha reductase inhibitor to reduce DHT levels.
Was cyst in thyroid or parathyroid?
Suspect hyperthyroidism based on your description.
Please find out more about what the problem was and explain your symptoms then.
The above study, as most are, is flawed in not discussing selenium.
Iodine fortification seems to have started late there. Could be part of your problem. If you do not eat commercially produced bread you also miss that iodine source.
Do you have labs:
hematocrit
RBC
ferritin
fT3 - fT3 is the active thyroid hormone and should be tested!
fasting glucose
AM cortisol - at 8AM please
Stress from accidents, surgeries, illnesses etc can affect your adrenal health.
Please read these stickies found here: About the T Replacement Category - #2 by KSman
advice for new guys
things that damage your hormones
protocol for injections
finding a TRT doc
Please eval overall thyroid function by checking oral body temperatures as per the thyroid basics sticky.