If you go to NA, just like everyone else say you are an addict. And there will be others there who are overeaters too. No one will discriminate, I have even been to NA meetings 'just' for codependence. I promise your problems will not be any lesser than other people there, and it will surprise you how much you have in common.
No idea about GP records and careers. But honestly I wouldn't worry about it, or perhaps go and be honest and ask your GP before you got into details. I have anxiety and depression and over a year's worth of therapy, on my various records now, but I would not be as happy or as alive if I hadn't gotten help.
Re: codependency being the root of all addiction, that I have heard a lot but saw written down in one of Bradshaw's books. Codependency was first identified with spouses of alcoholics, as they had similar issues. But it is much broader than that. Basically it is a spectrum, where from 1-10 everyone has codependent traits, it just depends on where along the scale you lie. It comes from growing up in a moderately (basically everyone) to severely (e.g. alcoholic) dysfunctional family.
There are lots of great books out there. The best are:
Anything by Pia Mellody, Melodie Beattie, John Bradshaw and I really like 'codependency for dummies' by Darlene Lancer.
There is a great little card CoDA publish that summarises codependence.
Difficulty maintaining health relationships with yourself, others and life.
Do you experience problems with:
Controlling behaviour
Obsessive thinking
Compulsive helping and advice giving
Feeling victimised and angry
Resentments towards others and life
Difficulty identifying feelings
Difficulty making decisions
Only feeling good when you can help others
Perfectionism and critical inner voice
Low self esteem or feeling better than others
Unable to say no or set boundaries
Fear and Avoidance
Again from CoDA: which helps understand codependency
CODEPENDENCY & RECOVERY - The Differences
In co-dependency, my good feelings stem from you liking me; In Recovery my good feelings stem from me liking me.
In co-dependency, my good feelings stem from your approval; In Recovery, it?s self-approval that determines my good feelings.
In co-dependency, your struggle affects my serenity; In Recovery, your struggle matters because I care about you, but it does not control how I feel about myself.
In co-dependency, my self-esteem is bolstered by solving your problems, relieving your pain; In Recovery, my self-esteem comes from solving my problems, sometimes experiencing my pain.
In co-dependency, my mental attention is focused on pleasing you; In Recovery, I?m free to please me even when it may not please you.
In co-dependency, my mental attention is focused on protecting you; In Recovery, I protect me, even if sometimes you must protect yourself without my help.
In co-dependency, I may disguise my feelings, manipulating you to do it my way. In Recovery, I tell the truth about my feelings, regardless of the consequence.
In co-dependency, my hobbies and interests are put aside; your hobbies and interests dominate; In Recovery, I pursue my hobbies and interests, even if that means spending time away from you.
In co-dependency, your clothing, behaviour and appearance are dictated by me, as you are a reflection of me; In Recovery, you dress, behave and appear as you wish, regardless of how it makes me feel.
In co-dependency, I am not aware of what I want; I ask and am aware of what you want; In Recovery, I am not only conscious of my own wants; I verbalise and take action to achieve them.
In co-dependency, my dreams I have for my future are all linked to you; In Recovery, my dreams are my own even if they do include you.
In co-dependency, my fear of your rejection determines what I say or do; In Recovery, my commitment to strength, hope and recovery determines what I say or do.
In co-dependency, I?m afraid of your anger, it determines what I say or do; In Recovery, I have no control over your anger and it has no control over me.
In co-dependency, I use giving as a way of feeling safe in our relationship; In Recovery, I can still give because pleasing you pleases me, but I want to receive as well. And that two-way connection has nothing to do with safety or fear.
In co-dependency, my social circle diminishes as I involve myself with you; In Recovery, I hope that you?ll like my friends, but if you don?t, I?ll understand.
In co-dependency, I put my values aside to connect with you; In Recovery, my values are mine, as the core of my being they are sacrosanct.
In co-dependency, I value your opinion and way of doing things more than my own. In Recovery, I value your opinion and procedures, but not at the expense of mine.
In co-dependency, the quality of my life is in relation to the quality of yours; In Recovery, the quality of our lives is separate, with clear boundaries separating the two.
In co-dependency I tell everything right away, seek intimacy at the first meeting, and fall in love before I have any real information about who you are and what you can contribute to my life; In Recovery, I allow time and friendship to intercede; I am not overwhelmed by you and can discern inappropriate behaviour.
In co-dependency, when something needs to be done and no one is willing to do it, I automatically assume responsibility saying, ?someone has to do it?. In Recovery, I operate from a position of choice, letting go, trusting to a Higher Power when circumstances dictate my saying ?no? to someone else?s needs.