Hi @Lilacdew
Sorry to hear about your health condition.
If you're "only" drinking a typical size glass, maximum two, per evening, then it's likely you've got into a sort of ritual habit. Your brain now associates your glass of wine with 'work over, relaxation time to begin'. It could as easily be a Mars Bar, a Big Mac, a hot chocolate, a bath, or a walk, but over time, you have trained your brain that the signal for 'work over' is wine, so it now craves it.
You need to retrain it. The most successful way to break a habit is by being motivated. Believe it or not, your sleep and your body are still affected by the amount you're drinking. Stopping for a significant period of time will make you feel much better. Having a think about why you're dependent on it will help.
Your DH might not want to stop with you - that's his choice. Your role is not to facilitate his drinking. If anything, if your medication strongly advises you to avoid alcohol, some might say that a caring partner would be supporting you to stop, which might include not drinking around you.
There are some good suggestions by posters on this thread. As they say, alcohol free wine and beer is now very good. Going for a walk, removing yourself from the situation, is also a good option.
Swapping out for a good few weeks whilst you see how you feel is a good start, along with some podcasts and reading to help you learn more.
Good luck - there are loads of threads on here for support if you fancy chatting.