Not to scare anyone-

but when Rowdy was doing this a couple weeks ago it turned out he had eaten a few articles of clothing and basically his stomach was too full to keep down the food. He would eat like normal and he actually acted completely normal but then later I would find the evidence that he had thrown up. It also had a bad odor to it and that was because of the items in his stomach. I had no idea he had even chewed anything much less completely ingested 4 pair if undewear and a few socks... if she has free roam of the house is there any way she could have gotten into a hamper or clothes?
I'm sure Rowdy's case was rare but it happened all the same.
As far as rawhide goes- I don't give it. I've never had good experiences with it- they either got the runs or choked until they threw up.
Hope this helps- good luck!