Hi. I'm not sure if I've been having anxiety attacks or not, but it's my closest guess. The best way I can explain what happens to me is first I feel as thought I'm not in my body, but rather out of reality, and then my fingers start to shake and parts of my body follow, and I have chills sent down my body, and then lastly, I feel as though my throat is closing in and I can't breathe so my breathing becomes quick, frequent, and raspy.

Are these signs of anxiety attacks?

Yes those are signs of anxiety attacks, depersonalization, to all the other symptoms you described. But only a doctor can give the diagnosis. Good Luck.