yes i ahve had that bob it feels so strange listening to u reminds me of myself i ahve alot of the same symptoms they are scary but it took me awhile to realize they were anxiety i know me saying it prob does not help but thats what it really is i know i'v gone through it feels never ending but it will stop trust me u just need to sit down when it starts and take a nap just like i use too when i awoke i feltbetter instanly or maybe this helps i would play video games something to distract me from thinking to much about the symptom that was bothering me at the time i hope this helps if u are ever in high anxiety please pm me and i will rspond to u take care dear

steph