Well I took her back to the vet today, he wants to try another lot of injections and if there's no progress overnight he wants to operate and remove the slugs. He's done the same op a few times before and is optimistic that he can help. At this point she is still behaving normally and active and the slugs are very near her vent. He is hoping to try a warm bath and gentle massage later on today once she's had her injections.