Exactly. I've not tried LP and certainly don't plan to, but the swimming, yoga, walking..... Frankly, that is what caused me to slide from being moderately ill to severely ill with some nasty, scary times along the way.
Also, I think these categories can be a problem. CS may talk about mild, moderate and severe and I, as an experienced patient, know that somewhere the MEA defines what is meant by that. However, other doctors may use different definitions of each level. Let's face it, if over 40% of patients seen at clinics are misdiagnosed, what are the chances of those with the correct diagnosis even being correctly categorized.
So, a patient could easily be harmed because someone told them they were mildly affected and suddenly they're trying to swim and don't realize that their doctor may grade them differently.
edited - clarity