So no entrance wound, that means she has been packing that thing around for awhile. She should recover, in my opinion if she was going to die it would of already happened. Let us know if she stops eating.
This is my thoughts exactly. Looking at the condition of the barb, it's been shed a LONG time ago and was in there awhile. Could have been a slight movement that forced it out. I've seen similar things happen (twice with barbs and once with a hook). I'd bet she'll be just fine.
