Michael,, what you said about the nurse slapping you on the back of the head and laughing with you made me think of something. It is far easier if, as a patient, you are able to forge a connection with the nurses and techs. Thankfully, at our clinic that is not hard as we do not have the "I know what's best" types. If you know you can trust the people who are going to be treating you for four hours, and know they are going to do their best to make you comfertable, except the temperature, and make sure you have a good treatment, it is far easier to face going in three times a week. I can't imagine the agony of some who talk about how they are ignored and not listened to regarding their treatments, and the way some say the nurses or techs make it a point to tell them they do not care.
I have sciatica and I am ALWAYS in pain in the chair. I get leg spasms with my legs jumping around involuntarily. It is torture for four hours. But, as soon as I get out of the chair and stand up, I am fine.