Thank you Bill for contacting our Bea, and I am glad to hear she is busy with family but she sure does sound like she is also tied up with Doctors appointments as well as her physical issues.
Chiari malformations (CMs) are structural defects in the cerebellum, the part of the brain that controls balance. Vertigo (dizziness) is one of the sx of this malformation. Low cerebellar tonsils could be what is called Chiari 1 Malformation. These tonsils are not the same as the palatine tonsils, which dangle at the back of the throat behind the tongue.
I hope that is as clear as mud.................
Bea, we are all here for you sweetie and sending prayers and good wishes your way.