What about pain,
@Pavlos Maros?
Is the statement, "I am in pain." a fact?
I mean, I think we can agree that certain events like injuries always produce pain, but I might be in agony with something you brush off as "only a flesh wound." Do you brush off my agony because your experience is different? Whose pain is a fact.
What about something like my tension headaches? They are agonizing to me at their worst but there's no visible injury or illness that would be relatable to someone else. In fact, I am not entirely sure of the cause other than they correlate strongly with back and neck issues which is why I think they are related to tension. If I say, "I am in pain", is that a "fact" or just a statement of my subjective condition?
This is serious question because we have a problem in our medical system with doctors sometimes dismissing people's experience of pain or other symptoms if they can't find an obvious medical cause. It is not a "fact" to them if they can't diagnose it so the patient gets no help beyond maybe a suggestion to buy some ibuprofen or see a psychologist.