I had dreadful health anxiety too. The one thing that helped me reconcile that and finally believe I wasn't going to die was committing to abstinence.
It's not really expressed clearly here, but in another thread you mention you and your husband are drinking in moderation now. Please correct me if I've misunderstood that.
If you're worried about the effect on alcohol on your health isn't there some cognitive dissonance in continuing to drink, even in moderation?
D