Anyone else have a similar experience?

Kind of. I didn't resort to physical violence, but I did purposefully harm my Nmom twice.

At one time, after my Nmom had been abusing me for many years, at one point she decided that she was going to move to another state and she started demanding that I had to move with her and continue to live with her, instead of me staying where I already lived, and I told her no, I was not going to move to another state with her. But she kept telling me that I had to go with her, and didn't stop with this. And I was pretty sick and needed time to cure myself, which would be impossible if I just moved with her to wherever she wanted, and also she moving out and I staying where I was would actually help me because then It would be harder for her to abuse me. And in our house, I was always the one that dealt with all the computer stuff. So, since she wouldn't stop with trying to force me to live with her no matter what, I deleted all her files from the computer, and deleted all the backup files too. It did cause her a bunch of trouble, she complained a lot about that, but I didn't care. After that, she never again told me that I had to live with her no matter what. And now she also always puts a password on her computer, lol.

Another abuse that I suffered at the hands of her was that she wanted me only to go to a doctor that she choose, which always was a crappy one. And I had to take the drugs that she choose, I had to go on appointments on the days that she choose, and no matter how much worse I got because of that, she wouldn't care. She also would make up diseases for me and say that those were the reasons I had to do the so called treatment, like I was schizophrenic or paranoid or euphoric or too shy or whatever, when I was none of those things. So, at one time, she again wanted to force me into going to a crappy doctor, and I complained a lot, like I had done already numerous times, and finally I sent her an e-mail saying that if she continued with this behavior, I would treat her badly. And she scheduled a consultation with another crappy doctor and took me to see him, and he didn't help me at all, only said a bunch of useless stuff, and wanted me to take drugs that would ruin my health. So, after I got home (I wasn't living with her anymore at this point, this was after the above incident) if I said to her that I didn't want to go to this or any other doctor that she choose, that wouldn't matter, because I had done that already and it never worked. Also, at that time, there was an aircraft crash that had happened some 2 weeks ago that killed a bunch of people and was on the news. So I wrote an angry e-mail and sent her the next day, saying that she deserved to be punished for what she did, and saying that she was a whore who only slept with rich guys for money, that she only slept with my father for his money (he was deceased at that time), that too bad that she didn't die on that aircraft crash, that a lot of honest people died at that day, and an crappy whore like her was still alive, and a lot more of awful stuff. After that, she did say that her pressure was up and she had to take a higher dose of her blood pressure medication, but she never tried to force me to a doctor that she choose again.