Welcome to the group -- wish you weren't here
I'm a new member myself and have not long ago gone through a similar experience. Yes it is a shock, and yes you do get over it.
If the Doc want to do hormone therapy, then that's what you should do, regardless of the side effects. Your hubby sounds like a very fit guy, so it may effect him less than others.
I haven't had hormone therapy so can't speak to it's effects -- but others here have and I'm sure they will be along soon.
Age 63. Other than cancer, in good health