That's a difficult collection of symptoms Nigel. I guess we all vary in the way we recover but at 4 months after finishing ADT you're still very much lacking testosterone and that's the big controlling factor for most of those symptoms. If you were having six monthly injections the effects aren't going to start to wear off until at least six months after your last shot, though I'm not sure if you had the last scheduled injection or stopped at that point. If you were having six monthly shots [that's quite a long interval, three months is more common] they are going to taper off more slowly than the three month interval shots.
My own experience post-HT was gradual but distinct improvement in all of those side effects you mentioned with testosterone returning naturally at about one year. Sweats and leg pain disappeared early, though even now, a couple of years past HT, my sleep is not quite as good as it used to be. I think that's probably a mental thing, rather than something physiological.
The urinary leakage sounds like something related to your earlier prostatectomy and I don't have the experience to offer any thoughts on that one.
Jules