I've personally experienced some very strange symptoms that will popp out of no where and I'll have a new addition to my already long list of anxiety symptoms...as far as your feeling of a "racing mind" I've had that before-it kind of feels like you can't concentrate on one thought right? You feel like you are going crazy-but you're not I promise. I may be young but I've experienced so much anxiety in my life to know having any kind of anxiety disorder does not make you crazy. Maybe talk to your psychiatrist and see what he/she says maybe there is a new med you can try and if you don't want to do meds maybe there are types of natural healing you could try-meditiation is great.
Good luck