Why I still Work During Illness

I think I have eaten something that my body disagreed. I have been unwell for nearly 24 hours. The abdominal pain has been annoying. Instead of lying down on bed, I decide to keep working by going through simple paperwork. It serve as a good distraction and also keep my work moving. However, I have avoided doing anything serious as I prone to make mistakes when I am unwell. I have reach a stage of my life where the body needs more time to recover. I should be eating things that are lighter.