That just happened to me! I did everything that you did except save her to the bin. My sim was the daughter a a vampire and his imaginary friend turned "human". One thing I noticed about her was that all her vital signs were green, but she couldnt eat food--only plasma stuff, but she could also turn into toy form. I had to start over too. Hopefully this time things will work out. I am trying to get a generation started. I keep having bad luck!