Not just chronic illness, but any viral illness is hard to describe and does not have reliable biomarkers. You wake up feeling lousy. Your family can tell beca

Not just chronic illness, but any viral illness is hard to describe and does not have reliable biomarkers. You wake up feeling lousy. Your family can tell because maybe your voice is deeper than normal, but a medical professional would not be able to tell you are sick. I feel "inflamed", "off", "not well", "less vigorous", you know, "sick".