ELI5- why does your head feel so weird when you’re sick(like with the flu)?

Question

ELI5- why does your head feel so weird when you’re sick(like with the flu)?

In: Other

Answer 1

Sinus pressure.

Sinus pressure occurs when the membranes that line your nasal passages get irritated or swollen due to colds, allergies, sinus infections or other conditions.