My body works exactly as it is supposed to.

Fever is not a malfunction. It's the immune system deliberately raising the temperature, because most of what invades a body does badly in heat. It feels terrible, and it is the system working.

A great deal of what a body does feels like betrayal and is actually function. Pain that stops you using an injury. Exhaustion after months of running on four hours. Hunger, swelling, the cough that won't quit, all signals rather than failures.

This doesn't mean nothing ever goes wrong or that discomfort should be waited out alone. It means the default reading is worth flipping. Before assuming your body is against you, ask what it might be trying to do.