I'm sorry to hear about your Hedgy
Is it Zuri that's not well or do you have others?
Is there any chance she has been exposed to draughts or sudden drop in temperature,Hedgehogs suffering hypothermia can show whs symptoms.
If her symptoms have come on all of a sudden,like say afew hours and she has been previously healthy it could be vestibular syndrome,That affects the inner ear.
You can find more info herehttp://www.hedgies.com/vestibularsyndrome.htm
If she is wobbly on her feet you will have to keep her warm,maybe on a heat pad,and
give her lectade rehydration fluid or some honey&water,you should be able to buy it over the counter at any drug store,because she won't be able to eat or drink from her dish properly.
I would mash some of her food into a paste too and feed her by hand to make sure
When you go back to the vet ask him to check for vestibular syndrome.
I hope for her and your sake it isn't whs.
Keep us updated and good luck