I am far from being a doctor, but it seems to me, having read your entire post, that the critical issue in your treatment would be dealing with sleep. If you do not find a way to go to bed early when your husband (it is not possible to call him when he is offshore, is it?) is away, you won't have good prospects from treatment. No medication in the world can substitute for good sleep. Regarding hypersomnia, I would worry about it AFTER you are firmly on the same go-to-bed schedule.