14+ willie was on prednizone for five years...I finally got him weaned off it just a while ago. I didn't know it was that bad for him until I started reading things in here about it. I still have to watch him to make sure he doesn't stop eating though.
OOPS forgot this...maybe u could ask your vet about diazapam today for a couple of days so Benni could gain a bit more weight? Put him in a place where he couldn't hurt himeself? Just a thought.