I've think been really lucky.
I first had HT for 2.5 years back in 2012. I had some problems with joint aching and some tiredness, but no flushes. I also had 37 sessions of RT and did get pretty bad fatigue. I restarted HT again last April and have, so far, had zero side effects. I have continued to work throughout my treatment. I am partly employed and self employed and was able to grab the odd nap during my RT. They really helped.
I hope my luck holds.
I think everyone reacts differently,. I hope your husband avoids the worst side effects.
Dave C (Chaps)