One of my Yorkies from a long time ago did the same thing...ate a hole through the drywall but it was because he was crated and he was too close to the wall so when we were at work he definitely kept himself occupied..lol. We learned to pull the crate far enough from the wall so he wouldn't be able to get back at it. Thank goodness my husband at the time was able to fix it without calling in a professional. I know...at the time you are so mad at them cause they have a zillion toys to chew but then after a few minutes who could be mad anymore. At least the wall is fixable look at it that way.
and she didn't get sick from eating the wall.