I think at 50 years of age and a 499 ng/dL total testosterone blood level I would have suggested first:
1- Better sleep. Good sleep hygiene (going to bed before 10-11 pm, getting 7-8 hours of sleep, ensuring that you have no sleep apnea) can improve T levels.
2- Weight loss. If your BMI is over 26, losing weight may improve T level.
3- Ensuring that your blood drawn was done in the morning and under fasting conditions. Breakfast can decrease testosterone by 20 percent due to a spike in insulin.
4- Taking low dose Cialis daily. This has been proven to increase the testosterone-to-estradiol ratio.
5- Measuring your LH, FSH, TSH, free T3 and free T4. Low thyroid function mimics the symptoms of low T.
You obviously were not being dosed right since your total T never increased beyond baseline.
I do not know what dose of Clomid you took. Some men successfully get off TRT with a HPTA reset protocol but the 4-6 week process is usually not really fun.
A staggered combination of HCG, Clomid and Tamoxifen are used.
We can discuss that in more detail if you wish.
Nelson, not to hijack the thread but is there somewhere on this site where you've expanded more on the daily low-dose Cialis? I've never heard of that. Sounds interesting.