Hi, jetset, and welcome. If you read through this thread, hopefully it will give you some perspective on how your husband feels at times.
My DH also has CFS, and has done well before I did (before we met, in fact, so at least I knew what I was getting into, although he wasn't so symptomatic back then). He's also more ill than I, so you and I may be in somewhat-similiar circumstances. I'm working full time and trying to hold things together, while struggling with my own health. (And I also have a three-year-old. Who also doesn't sleep through the night, argh!)
Are you doctor-ing and doing a PhD at the same time? Sorry, I don't know how that works, do you see patients still, or is your job now research? Either way, that's tough! One thing I'd recommend is to look after yourself -- do you really not have an hour a week or every other week for some counselling? It may make other parts of your life less exhausting. And while your husband is ill, you are going to have feelings that need to be dealt with, and the thing is, you can't expect him to support you there. So you need someone else.
I don't know if you've ever heard of the bulls-eye pattern of support? You imagine the ill person in the bulls-eye, and the circles arround are family, friends, support structures, etc. Everyone should go out for support. So your DH is in the centre and you're the next ring. Your DH needs your support to deal with his illness, but you need support to deal with dealing with it. He's not structured to give that, otherwise the whole thing implodes. So you need to identify who that next ring is. Do you have family or friends you can lean on when things get tough? Or it could be a counsellor.
This doesn't mean your DH takes no responsibility, but there will be things that he can't help and that still bother you that you will need someone to support you through.
Another thing is to identify what your DH can and can't do. I've learned to not feel like my DH was upset with me when he was too tired to speak - his CFS is such that at times he simply cannot form words. I used to feel like he was mad at me because he wouldn't talk, and he felt like I was mad at him for being ill. Once I realised he had no control over it, I was able to realise it wasn't something to do with me, and so was less upset. So things like that - does that make sense?