After reading this thread I think my mum was a narc and can possibly explain every time I see her number pop up on my phone I always get a sinking feeling. 
Here are some examples I have never told anyone as everyone thinks my mother is lovely
maybe she is and it's just me. Maybe someone could say yes blush it's her not you.
When started my periods at just 12 I was shocked and crying as didn't know anything about periods she just slapped me and gave me a packet of pads and said stop making a fuss. She never did explain.
I was told constantly from 13 - 17 blush you need to lose weight you are to big I think I was a size 12.
She read my diary when I was 15 and called me a disgusting slut as I wrote how much I like some boy.
From 15 - 17 she would hit me for not doing the washing up, leaving things laying about, if i was a minute late home as always had to be in at 7
etc typical teenage things , she would slap me, push me say I was useless and fat
When got my first job at college I had to pay her half and still buy food and clothes
At 19 found out I was pregnant with DS 1. Got told to move out and how a shamed she was of me. Moved in with ex DP parents. She didn't speak to me until 2 weeks before DS 1 was born and turned up like nothing ever happened.
She turned up at hospital when DS was born and said oh blush you look so rough what will people think 
If on the odd occasion I asked her to look after him she would want paying as she has a life too!!!!! This is the mother who is earning £50 k a year and who now until this day always asks to borrow money!!!!
Recently one Christmas she gave Ds1 an I pod, DS 2 colouring pencils and me and DP a key ring. This year we didn't get anything as she told my DB we weren't speaking to her [ confused] we went to Thailand for Christmas she never said have a lovely time when I went round took her out for a meal and gave her a few presents etc prior to going she didn't start speaking again till February as she wanted to show her new ban what a lovely mother she is. When I mentioned something to her she screamed blush you was always a fucking nasty child [shocked]
Also I had some new jeans on oh blush I think my BUM used to be bigger than yours but it obviously isn't now 
At the moment she is being lovely but this is only because she is awaiting an operation and will need assistance for 6-12 weeks after but she keeps saying if I could afford to go private I would then I don't have to wait till June for my op. I think this is said as she knows I have got some money in the bank from my DF death and I think this is a hint for me to pay but I could be wrong.
I could mention numerous other things but I still think its me and I always carry a sense of guilt 