I'm not going to change my name for this because that would be cowardly, but I am kind of in shock because there are finger marks on dd's rib cage and I am responsible.
She wouldn't get into the car seat earlier and baby ds was screaming with hunger and tiredness so I couldn't just sit in the driver seat with the car stationary waiting for her to get bored of it, so I wrestled her into it. I wouldn't say I was violent at all, but I was very forceful. dd is exceptionally strong and my brow was beaded with sweat after I finally managed to get her in (after receiving several kicks and thumps from her etc). DD does do this from time to time and I have wrestled her in before but never left her with marks at all.
I can't believe that this few minutes of tussling to get in the car seat has left her marked in this way, and I am very uncomfortable that I was responsible. How the hell should I handle this situation in future because I don't want a re-run...