AITA for making my mother sick by yelling at her?

Note: This happened a few years ago.

So, I (20nb in 2021) snapped and started shouting at my mother and telling her how her actions clearly displayed that she had not accepted my gender and sexuality and was trying to stop me from transitioning socially and legally. The next day she got sick, like badly sick. One of my relatives came to check up on her and she just unloaded everything to him while crying and saying how I was verbally abusive to her. He told me of how he was embarassed that I did such thing and that everyone knew that I was going through such a "phase" and that rather than focusing on that I should focus on jobs and such and do all that transitioning stuff only after retirement. I came to know at that time that despite me having asked my mother to not reveal about my gender and sexuality to anyone else, she had indeed discussed with many other people and effectively "outed" me, not just to my father but also literally everybody who had any form of relations with her.

A few days ago, I was telling her how I cannot talk to her about this stuff because when I last did, she got so sick. She told me that I now finally realised that I was to one who made her sick back then and that it was an AH move for me to make.

I know that back in 2021, I did not handle things well. I was depressed most of the time and more. I had just had a talk with both of my parents where they affirmed me that what I was going through was just a phase and it was a disease and such. So, I just snapped one day. Yet, almost everyone called me the one who was responsible for making her sick. Honestly, there have been times when she got sick because of emotional/mental/psychological stress. And I did know about that.

So, am I the AH for causing my mother to get suck and telling at her?