Please read the first two stickies suggested below and see if anything there gives you a clue to cause.
At your age, low-T is the symptom and not the disease. Need to try to find cause that may be correctable.
Please post other labs as well.
Do you feel cold easier now?
Outer eyebrows sparse?
Have you not been using iodized salt?
Yes to any... see last paragraph
Many who come here have some thyroid/iodine issues.
I see signs of primary and secondary hypogonadism.
We have lots of guys at your age who have similar problems who find their way here.
Please read the stickies found here: https://forums.t-nation.com/t/about-the-t-replacement-category/38/2?u=ksman
- advice for new guys - need more info about you
- things that damage your hormones
- protocol for injections
- finding a TRT doc
Evaluate your overall thyroid function by checking oral body temperatures as per the thyroid basics sticky. Thyroid hormone fT3 is what gets the job done and it regulates mitochondrial activity, the source of ATP which is the universal currency of cellular energy. This is part of the body's temperature control loop. This can get messed up if you are iodine deficient. In many countries, you need to be using iodized salt. Other countries add iodine to dairy or bread.