Why does it feel like you have pressure in your head?

Feeling pressure in your head can be caused by various factors, including tension headaches, sinus congestion, or migraines. Stress and anxiety can also contribute to muscle tension in the head and neck, leading to a sensation of pressure. Additionally, changes in barometric pressure or dehydration may affect how you perceive sensations in your head. If the pressure persists or is accompanied by other symptoms, it's advisable to consult a healthcare professional.