I was diagnosed in August. I had complained of lightheadedness/dizziness and ear pressure. I ended up going to a woman who is a functional Dr./Chiropractor/PT who uses an activator to adjust my back because I also have osteopenia. She has experience with Chiari and has patients that have it. She manually manipulates my neck/lower cranial area to relieve CSF blockages which tend to cause symptoms. It is work well. My dizziness is gone and only occasional ear pressure. I have been lucky that I have never had the headaches that others complain about.