Hi, Suz ~
I underwent 26 FSR sessions (approximately 40-50 minutes each) to destroy a 2.5 cm AN that my neurosurgeon had debulked (from almost 5 cm) 3 months earlier. This was a planned approach (surgery then radiation). He chose FSR because it had proven to be efficacious with a minimal amount of damage to brain tissue and cranial nerves. I went to a hospital cancer center for treatment, Monday through Friday (weekends off). I did this for 5 weeks (and one day) driving myself both ways, a 60-mile round trip each day. The FSR sessions were tedious but painless and I suffered no ill effects. No nausea or dizziness. Subsequent MRI scans showed the beginnings of necrosis and shrinkage in the remaining AN. I feel great and have long since resumed my normal life.
On the basis of my FSR experience, I would have to say that it was an excellent choice for me. I trust it would be the same for you.
Jim