When you jump or engage in physical activities that involve sudden movements or impact, you may perceive a "chak chak" sound in your head. This phenomenon is often referred to as "head-rush sound" or "crackle sound." It is typically caused by a combination of factors related to your body's anatomy and the movement itself.
One major factor contributing to the sound is the movement of the fluid and gas within your inner ear. Inside your inner ear, there are structures called semicircular canals that are responsible for detecting rotational movements. When you jump or experience sudden changes in motion, the movement of the fluid and gas within these canals can generate sounds that you perceive as "chak chak." These sounds can be similar to the sound of bubbles popping or fluid moving.
Additionally, the sudden movement can also cause changes in pressure within your middle ear. The rapid acceleration and deceleration of your body can create pressure imbalances, which can lead to the perception of sound.
It's worth noting that these sounds are typically harmless and temporary. However, if you experience any discomfort, pain, or persistent abnormal sounds in your head or ears, it's advisable to consult a medical professional for a proper evaluation.