That definition doesn't comport with my experience of British-English usage in UK. The definition you link is interesting, I'll quote it: >symptom >(SIMP-tum)

That definition doesn't comport with my experience of British-English usage in UK. The definition you link is interesting, I'll quote it: >symptom >(SIMP-tum) >A physical or mental problem that a person experiences that may indicate a disease or condition. Symptoms cannot be seen and do not show up on medical tests. Some examples of symptoms are headache, fatigue, nausea, and pain. There seems to be an internal inconsistency in defining a symptom as physical if it's not objectively discernible; in what way is it physical? If you know it's a physical aspect of a patient then isn't it objectively observable and and so not a 'symptom' under this narrow definition? We're going to tie ourselves in knots here for sure.