Sounds like you found a great therapist! Sometimes just the effort of going to the appointment itself can be a lot, glad to hear you made it through. It's good of him to base the timing of the appointments based on how you feel. If you're not having any trouble after then, going more often would probably be more effective, if you can afford it. I was fortunate to have my parents chip in for part of my physio. Also, any work on your skull shouldn't be invasive, or involve any repositioning, it should be just to just to relieve pressure if anything is tight, just like anywhere else in your body. That's crazy about your vertebrae being out of position... I hope this brings you some relief!