Libertad
Sparking up a rollie in the Reichstag
None of his conditions are listed at all, which means he's unlikely to see a doctor, and highly likely to see a nurse or a physio. CFS/ME and Fibromyalgia are contested diagnoses regardless of the fact that they have severe real-life consequences, so referring to symptoms of the conditions/their effects works well. As for osteo-arthritis, it's so common it wouldn't surprise me if they have nurses assessing people who have it.
The trusty old route of making it about observed symptoms, past consultant-grade medical opinion and whatever can be dug up in terms of medication effects etc is probably going to be necessary, as an assessment based on input only from a WCA is going to screw even a deader into going back to work, sadly.
Well that's cheered me up no end. I get what you're saying though VP.