I agree. However, I got caught in a logic loop. I developed ME and then, more or less accidentally, discovered I am actually deficient in and struggle to absorb certain things. When these deficiencies are addressed weird symptoms that pre date the ME disappear. When I stop supplementing the symptoms come back. So, apart from possibly placing my "system" under a bit of additional stress, these deficiencies are probably nothing to do with ME and I suspect predate it. It was actually someone specializing in allergies that helped me in this regard, not an ME specialist who referred. However, because the deficiency was identified after the ME diagnosis I do find doctors confuse the two and tell me that ME doesn't cause it, when I never said it did, and therefore it's bunkum. The NHS won't pay because ME doesn't cause these deficiencies, though they might have paid if the deficiency had been diagnosed and addressed before I was diagnosed with ME.