‘Sickness is for mere mortals’: The illogical thoughts of an unwell doctor     Â

I suspect that, like me, most GPs tend to battle on with our work, even when we note signs and symptoms suggestive of personal ill health.
I recently suffered a bout of Influenza A, followed by a touch of food poisoning, and despite sound advice from my nurse wife, I continued working.
Okay, I did do telehealth consultations from home while I had the flu, but went to the surgery as soon as the D&V subsided.
What illogical thoughts drive us to continue helping our patients when we suffer from the same illnesses they do, and would put them off work with a medical certificate if they had what we have?