TRT: You should go after TRT as vigorously as you can. It will be life changing. There really are no major side effects if you follow the guidelines suggested. You do need to monitor RBC and HTC as some guys have those go elevated.
Barrett's disease: Probably a result of GERD. So I expect that you have been using a lot of PPI heart burn meds. These can lead to mineral absorption deficiencies and Vit-B12 deficiency. Do you have a Hiatal hernia? If so, that is often mostly driven by abdominal/visceral fat and weight loss becomes an urgent issue. Both low-T and low thyroid function drive fat gain. There can be other effects such as insulin resistance and lab A1C will be more indicative than glucose, especially with your fasting creating confusion.
TT - low!
FT - will be low, no need to test again
FSH - low, LH will be low
prolactin - low
Please check overall thyroid function via last paragraph.
Explain your history of using iodized salt.
There is a lot that you need to read to protect your self from doctors who are almost always uninformed and dangerous. Doctors are the problem.
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.