Why is my toddler hitting me such a massive trigger? Does anyone else get this?

[ventoclock]

My 16 month old just hit me in the face and I've broke down in tears. Every time she hits me or throws things at me it triggers me massively. My mum was emotionally abusive and I walked on egg shells growing up just waiting for her to explode. She wasn't always violent but she did on occasion attack me physically, throw things at me etc. I know my daughter doesn't mean it but I can't seem to tell myself that in the moment. It completely knocks me for six every time. Does anyone else understand this? How can I stop feeling like this? I know it isn't her fault.

I understand, my four year old used to hit during a temper tantrum although has pretty much grown out of this now. I found it extremely difficult to deal with, I had a pretty traumatic childhood and i just couldn't deal with being hit. To be honest I got myself into therapy to try to deal with my childhood but I also read Calm Parent, Happy Kids and also Peaceful Parent, Happy Kids not because I was yelling but because I wanted some strategies so as not to repeat my childhood with my children and the strategies in those books really helped me.