"Just like this country doesn't like you"

I am an Asian woman visiting Washington DC for 3 weeks for an academic fellowship. Day 2 of being in the USA, boarded the bus in the morning, electronic card reader didn't work for some reason for the travel card, although it had worked fine the day before. A woman standing at front of the bus immediately launched into racist torrent of abuse, saying, “the card reader doesn't like you just like this country doesn't like you, motherf—king Chinese ch-nk b-tch,” etc, and shoved me around forcefully (couldn't even stand upright), lasted around 10 minutes until she finally got off the bus. She did not seem to be on drugs or have significant mental health issues otherwise, although was obviously very angry for completely inexplicable reasons. Completely unprovoked attack targeting me specifically and my race / ethnicity. The incident left me in shock; I had no idea how to respond, did not engage with her as I feared for my physical safety as she was much taller and stronger. I feel incredibly distressed by the whole incident, anxiety and PTSD about even taking the bus now, and resorting to avoidance behaviors. I am seeking counseling and support. The bus was quite crowded with primary school students who were shocked, and I understand why no bystanders intervened as there were barely any adults, although one man subsequently asked if I was okay.