Then they give long lists of symptoms, causes, diagnosis, treatments, 'PoTS is very common in long COVID', etc. This isn't a fringe or a lobby group, it's the NHS talking directly to patients. If some doctors are going to shun patients for believing they have POTS, those doctors need to understand that the call is coming from inside the house.
Firstly I want to re-emphasise that the point of the discussion here is not to criticise patients for telling doctors they have certain diagnoses. We are all agreed that patients should not be dismissed because they think they have this or that diagnosis. There is nothing to argue about there.
(The only caveat to that is that there
are patients who insist on having three or four diagnoses that sound as if they hve no meaningful basis and get abusive or peevish if doctors disagree. If someone comes to me for advise and insists that whatever i think is wrong because they already know their diagnosis I don't have a lot of sympathy. I think members need to be aware that some people aren't necessarily as reasonable as members here tend to be. The clinic that I quoted attracted people from all over the country because they believed they had a particular diagnosis which they almost certainly did not have in any useful sense.)
The situation regarding NHS information sheets is significant but is worth a bit more explanation.
In the 1970s UK medical textbooks were rather old fashioned, without adequate references and often waffly text that was not up to date on evidence. I realised swatting for exams that USA-based textbooks were far better. References were rigorous. All up to date evidence was cited. Discussion was critical and astute. The US had rightly gained the reputation of doing things more thoroughly in biomedical science.
But by 1995 things had changed. European journals and textbooks started outcompeting US versions. On the clinical side Europe came to be seen as ahead in quality control -typified by NICE, which was often more rigorous than US equivalents. US medical education declined progressively. It became possible to practice as a physician having trained at a school of 'osteopathic medicine'. Medicine became more and more a matter of commerce and marketing. Journals ceased to have any meaningful quality control so that names like Nature and Science, that used to indicate rigour, became just another part of the salami machine.
Since the 2005 PFI initiative in the UK the NHS has also become much more politically driven and other vested interests have influenced literature on clinical care.
The story has further complexities but the upshot is that by 2025 both US and UK medical information has been degraded from the rigorous approach based on reliable evidence of the 1970s and 1980s to accommodate also sorts of vested interests and also to dumb things down, supposedly because most people are dumb or have a reading age of 8. Literature put out by the NHS has no quality control and a lot of it reflects pushy groups wanting to sell their wares.
The 2021 NICE guideline was an intriguing point in history because NICE was still using a degree of rigour and ousted the vasted interests that had crept in in 2007. But the rest of the medical establishment had been taken over by the yes men and women who were happy to go on supporting vested interests.
POTS is an interesting example in that it has become quite widely used, not just by private rheumatologists and the like but also by cardiologists who probably find it a useful way impressing patients how clever they are. I don't know what a poll of UK rheumatologists on the usefulness of the term would reveal but you might get quite a high positive rate. At the same time there will be a significant number who like me are very unsure what the term is supposed to mean and would not use it themselves. I don't think you would find the muddle that is 'POTS' in a 1975 US medical textbook. No more than you would find a chapter on fibromyalgia, even though the term existed, or on nerurasthia, which had been recognised as too vague to be useful.
In short, 'official' medical literature is now mostly not worth the paper it is written on or the scrolling down of the e-text.