I noticed that my 24x7 ache in the testes, that a few get, was resolved in two weeks. Recovery of tissue function and size will take some time. Watch for changes to how the boys hang if things were not hanging right.
I was shutdown for 2 months and the effects were very obvious, to me and my wife.
I felt my balls and testes moving around on their own. I think that those who trim pubic hairs will notice that more than otherwise.
I felt an immediate improvement in mood and some kind of immediate CNS effect in about 10 minutes after my first injection. Longer term, as the testes start getting productive, pregnenolone production will also resume that is important for mental functioning as preg is use to produce non-systemic neural steroids.
All of this is very individualistic and may also be strongly influenced by age.