I have followed most of these threads on and off but never been sure I had the time to post. By that I mean I avoid opening up about how I feel about my parents, because if I did I would talk and talk and no-one in this house would get fed or clothed as a result!
At times they make me feel angry, worthless, damaged, ignored, criticised, sad, ridiculed. Other times they make me feel like maybe I'm seeing it all as I want to see it, maybe I'm ungrateful, spiteful, selfish, victimizing myself. I think that's the thing, the "that never happened"'s and the "look what we did for you, sent you to private school" comments etc that shake my confidence that they're in the wrong at all, despite counsellors telling me otherwise and that I have every reason to feel sorry for myself the self-esteem issues always make me wonder what I've said to kid this counsellor that my problems are real and I'm worth someone feeling sorry for... 
Basically my mother is an alcoholic, and I suspect has NPD. She has a very short fuse, always has to be centre of attention, gives very little in terms of mothering/grandmothering but expects the full granny treatment in return. She has done and said some awful things which I'm sure I'll get to in time.
My dad is her enabler/carer and co-narcissist I believe it's called. Even in the face of her blatantly behaving like a selfish, needy manipulative cow, he will ring me to ask me to apologise for things I haven't really done, tell me how "upset mummy is", hoe "poorly mummy is" and refuse to see sense because he wants an easy life.
Despite me having counselling, and a model with which to go forward and think the situations through myself as they arrive, every now and again a row will kick off (usually before Christmas i.e. now which is why I'm in the mood to post this now!) and stand off's will ensue.
Because my mother will never apologise, never explain, it's usually up to me to smooth it over for the sake of my children, because I can't bear for them to be ignored any longer (she does adore them but will go without seeing them before she would apologise to me for a row or wrongdoing).
On the subject of the children, it's like I'm invisible when I take them over. She particularly favours my son and shushes everyone when he speaks.
I have wonderful in-laws but sadly they are too far away to get very involved with the children. Sometimes I sit with my husband's family who are all so loving to each other and my heart aches. I wish I had a normal, simple upbringing with parents I was sure a.) wanted me b.) respected me and c.) had my best interests at heart.
I am trying to be the best mother I can be, without a particularly good example/framework to work from, but sometimes it's so hard as like most adult children of alcoholics I presume other people must be more normal, more perfect and can get really anxious about the details.
I know in my heart I'm doing a better job than them; I don't drink drive my children to birthday parties or hit them ten times when one simple smack on the hand might do for a start... but the low self esteem that comes from living in a house where you never knew what the mood would be, or if today you would be adored, or disliked, carries through in to my adult life more than I would like.
I'm sorry I've waffled so much, not really sure where it's going but I feel a bit better for it so thanks.