I'm afraid that, as you probably already know, everyone is different. I have been on Prostap for 9 months, now Zoladex for 8 months, coupled with a second lot of Bical for the last 6 weeks. Usual reactions, especially the hot flushes which are a nuisance at night. I have found the Zoladex less intrusive than Prostap ( no muscle or joint pains for example), but many here will argue to the contrary
But to give you a bit of hope, I have just run my first marathon. Very slow and not very pretty but I beat the sweeper bus which was good enough for me! Its a question of keeping going and keeping active.
Good luck