I'm sorry you are experiencing this difficulty. At this point in my life I mostly experience anxiety as simply a constant internal sort-of tremor throughout my body. I frequently also feel like I'm short of breath nowadays too, although I'm really not. I'm not sure if that is an anxiety symptom or if it's a symptom of something else. I haven't seen a doctor about it.

Years ago, though, when I was still a real person (had a job & a life), I used to get some strange symptoms. One time I was at the theater & my eyes kept bouncing up & down in their sockets. I could hardly see what was going on. Another time my left leg began to shake so intensely I thought I might tip over! I've experienced other symptoms as well.