Just had the worst day at work and don’t know what to do

I feel like people are always judging me, and not even in a malicious way but more out of pity. I really don’t think this is in my head, people have pointed out my anxiety and have asked if I’m okay when I was trying my hardest to mask my anxiety. Some days are better than others but today was really tough. When my anxiety peaks like this it’s almost like it’s contagious, I start seeing people I’m talking to get choked up on their words and avoid eye contact. I feel like an ugly monster that just infects everyone I’m around. It’s not even that I care that much about being liked, I just don’t want to be seen that vulnerable yk. I start shaking and twitching, sometimes I feel like people must think I’m on drugs or something. I’ve been pushing through it at work but I so badly just want to quit. I don’t know what to do.