Help with intense emotions

So an incident happened at work, I went to GROW to complain about ongoing harrassment, only the person who is harassing me went first and now HR is threatening me with termination. Logically I know that I'll be fine, if I get terminated I can find another job but I'm a ball of anxiety and depression. Every time I think about the situation it's like a punch to the gut. My RSD is making things worse and I don't know how to stop it. I tried to distract myself but nothing is working 😭