BASIC MEA INFORMATION RE JOINT SYMPTOMS:
Bottom line here is that red joints are NOT a part of ME/CFS - you need to show these red joints to your doctor!
Although joint pain/discomfort can form part of ME/CFS, consideration should always be given to the fact that this could be due to a rheumatic disease that also causes fatigue (as many can - including lupus/SLE, Sjogren's Syndrome and rheumatoid arthritis), or the presence of a fibromyalgic component to ME/CFS.
Joint pain can also be caused by hypermobility syndromes, which are more common in people with ME/CFS, and should always be considered in younger people with joint pain - especially if there are other symptoms suggestive of hypermobiity syndromes such as very flexible joints, joint dislocation, digestive problems, dizziness or fainting episodes, thin or stretchy skin with easy bruising
More info on hypermolbility syndromes:
http://www.nhs.uk/conditions/joint-hypermobility/Pages/Introduction.aspx
The clinical assessment of people with ME/CFS who also have joint pain, along with relevant investigations, is covered in some detail in the MEA purple book
Joint pain in ME/CFS is NOT accompanied by swelling, redness or deformity - so if any of these 'red flag' symptoms or signs are present this indicates another explanation that requires proper clinical assessment and investigation by your doctor
Dr Charles Shepherd
Hon Medical Adviser, MEA