This is the right place. Come and vent all you want. We're here for you.
You might coach your husband to try to relax as much as he can when he's in pain. I know it's hard, believe me. I mean, I really do know it's hard. But long, slow deep breaths go a long ways toward causing a person to relax. If he can just do that he'll lower his pain a couple of notches.
Hugs and lots of love,
Dan