Hi Kathy, it's nice to see you

Yes, is the simple answer to your question

I have enormous gaps throughout my childhood (I also have them through my late teens and early twenties but I think the drink and drugs erased a lot of that

). But yes, huge gaps. I had very few memories of happy times but, interestingly, when I was going through therapy (and started to remember more about abuse events) I also started to remember some really nice things (mostly with my dad). I do remember the therapist saying the mind will just block memories, good and bad, if there's too much trauma to cope with. I have had quite a lot of situations where I remember I knew someone from those days (school, for example) but I couldn't remember whether we were friends or not. There was one girl I emailed when Friends Reunited first started up, and I said in the email, "I don't know if you remember me, but I think we were in the same year at school together". Her reply was that of course she remembered me, I'd been her best friend. I can remember her, and I do remember going to her house a couple of times but I didn't even know I had a best friend at school. I've had other occasions where people showed me photographs of something I was at (I'm in the pictures) but I have no recollection of the event or the people there. For years people would talk about, "oh, do you remember that day we were by the river", and everyone would fall about laughing but I really had no idea what they were talking about and just joined in.
It's interesting that you say you have no recollection of playing with your sister because I don't either! I don't think there was much in the way of play in our house, full stop. I lived in a world of my own; I had Sindy dolls and I spent hours playing on my own in my room. Either that or I read. We didn't really do anything as a family and, as you say, my sister and I were pitted against each other constantly (my mum carried that on to adulthood, telling each of us that the other had said or done horrible things, only for us to find out years later it wasn't true). My mum always controlled the communication between us and other adults as well (aunts, uncles and so on). Even as adults, we only saw other family members at weddings and funerals. There's no real family there at all.
So yes, everything you say rang a big bell for me

Therapy helped me with piecing together good bits of the puzzle (I have got some nice memories of my dad playing with us when we were little). And lots of therapy/diary writing helped the bad bits recede and take up less room in my head (eventually

) xx