Croup: 14 signs and symptoms
9. Headache
There are many symptoms which can lead to a headache. Dehydration, which causes the brainto shrink, can also cause a headache. Inflammation caused by the immune system can cause headaches.
When you have a viral infection of any kind, your body will try to eliminate it in several ways. This is done by inducing inflammation and swelling all over the body. The release of proinflammatory cytokines, and other biological signals, triggers this. They then cause widespread inflammation including inflammation in the head, causing headaches, brain fog and low motivation and drive.
You may have wondered why you feel miserable when you are sick and unable to do much.
