Update
Mrs. Grouch tried (unsuccessfully) to move up her appointment with the neurologist/vertigo specialist. Appearantly he thinks her "small vessel disease" is normal for a person her age and isn't what's causing her vertigo.
That might be good news. If he can treat her vertigo, we might be able to get back on the Screamer. We won't know, however, for at least 3 or 4 weeks. I hate waiting but we definitely need better facts before we can decide what we're going to do next. I don't want to ring my bell again.