I would be really freaked out. I would also wonder if it's a dream and if it's permanent.
Give me a few hours and I might calm down, but I would mainly hide from most people.
Only my REALLY close Friends and other furs (If any) can see me.... IDK how others would feel.
Basically I would feel overwhelmed and maybe excited.
I Mean, if my abilities are true then I would be psyched out!