Hi singingcat. It sounds like you gave a great and supportive GP. However I would urge caution with that method. I was anorexic for 10 years from 8 to 18+
I, at one point, was weighed weekly by my GP because he was worried about me and wanted to refer me. This suited me in my anorexic world because it wasn't real treatment. I bargained with the poor man and too much ended up resting on his shoulders. I'd go and see him weighed down with things, and I even reached a point where he said 'you can't keep losing I'mreferring you' so I said 'I promise not to drop below xkg' and he said 'ok if you drop below that you're being referred immediately' well, 'xkg' was critically low anyway and on that occasion after teetering along just under that for quite a while I fell into a coma in his GP practice at the start of one appointment and was taken to hospital by ambulance and on life support. I also was in a coma a few years prior to this. I have been in the extremes of anorexia but it is equally dangerous if not more so to be a long-term anorexic. My best friend died this year- her anorexia began in her teens and she died at almost 50, very thin, still the same. Managing it at home with some GP contact, occasionally seeing a nurse blabla. She lost her fight and she never reached the extreme lows, it is life threatening before that.
I am now fine, I feel I have recovered. I have a slightly distorted body image but I eat a lot and I don't freak out about food, anorexia has lost its control over me. It was like living in a hell, in a prison for years.
Anyway basically I have had treatment at outpatients clinics, one to one psychiatrists, treatment in general hospitals, treatment in general psych ward once (awful), adolescent eating disorders homes and an inpatient stay at a well known rehab clinic for a year. I have to say the only thing that ''worked'' was the inpatient stay. Anorexics tend to avoid effective treatment though because they are scared to gain weight and effective treatment= weight gain most of the time, so that's why you are probably thinking of seeing your GP and carrying on like you are.
I did relapse after my year's inpatient stay, critically, I was on life support and had a 20% chance of surviving. I was in nappies. I couldn't lift my head or turn my neck. It's pretty revolting actually, what I did to myself. I also, prior to that, spent a month in a coma. It's all such a waste of my life and my potential and it makes me very sad.
The 'cure' for me, really, was moving away from where I lived and getting on with life and getting busy- since then I've had 2 children who I never thought I would be able to have. I had to focus and drive myself away from the illness which had taken so many years of my life and education away from me to finally be free. And sometimes, yes I have a little voice in my head (not really!) saying 'fat' or 'ooh that's scary cake' but you know what, I eat pain au chocolats for breakfast, I scoff biscuits on the office, eat huge sandwiches at lunch and eat massive evening meals, I'm not fat- I'm a size 8-10 even when I am 'recovered' with no anorexic part of me at all. Recovery doesn't have to mean being HUGE!
Ijust really want to say to you that this is serious and very life threatening. You can carry on thinking you're maintaining and you'll be okay but you're not you're losing and you're doing extreme damage to your body and your biochemistry, your electrolytes, your body itself. An anorexic can collapse and die from a heart attack in an instant, or from any other reason. It is a very dangerous illness.
I think your GP sounds kind but I think he would be taking a big risk to allow the arrangement to continue because you, the anorexic, are not using it to recover- you need to see this is a problem for you and you need to want to get better and beat it. Nobody can force that upon you but it sounds like you are tired of anorexia and want to be free from it. It's you vs anorexia, it's nothing to do with your DH or anyone else really, this is a battle you must fight and win.
I am rambling but I want you to think why you are anorexic. If it's media pressure, everyone is airbrushed!!! If it's more than that though which I believe it really is then you need to address what's really wrong. You do need support and ongoing help and you need to start to re-build 'you' but I'm one for recommending the most dramatic head-on treatment possible because it's the most effective (in my book). So maybe you could ask your GP where he can refer you? Maybe ask if he can get PCT funding for some outpatient days at a good private clinic and some psychiatrist appointments? I found 1-1 talking therapy was more beneficial than groups, myself, but many disagree with this. Many people find Cognitive Behavioural Therapy a very useful tool.
I cannot tell you how good it feels to be 'free' now, it's worth it, it really is.