Sometimes, you have to work, go to school or do errands around the house when you don't want to, you're sore or tired or exhausted. I'm not talking about having the flu, stomach flu, or Covid-19, I'm talking about how most people who will never feel 100% all the time, and suffer from back aches, minor or moderate pain in their shoulders, fingers, hips recurrent or periodically, or all the time and they still soldier on.
Thats just how life works and the way it is. Maybe its unfair and likely to many, its insufferable bullshirt, or grating or annoying. But cursing it out even among like-minded friends or co-workers doesn't change the bitter reality that one has to face it and overcome it.