Does your insurance require a referral from a GP? Crazily enough, mine did not.
Some of the symptoms of CCSVI apart from MS might be headache, neck pain, cognitive issues, fatigue and weakness. (Unproven.)
No, your IR won't have to have been trained by Zamboni. Check the research sticky, the protocols might be up there?
Best wishes with this!
"However, the truth in science ultimately emerges, although sometimes it takes a very long time," Arthur Silverstein, Autoimmunity: A History of the Early Struggle for Recognition