Good to hear its going well, I'm not suprized. Cenegenics has good results, however way to pricey, as the same thing can be had for less.
While skin coloration is a reported side effect of Test. it is more from the increase thickness of the skin, and increased circulation than a direct cause/effect type thing. But this is good. You can then be called a "Red Neck" with authority. Most of the people, men and women, who use test. supplements have no color changes, but some report increase in pimples around the hair line. This is common with test. and DHEA of which I will not give the biochemical pathways--- so you will keep reading. Your results are seen more with the injectables.
It would be fruitless to discuss your case, as you outlined, without knowing all the drugs you were on.
Hormones replacement therapy, unlike most drugs, are beneficial because of their side effect profiles, rather than their direct pharmacological profile.