"head feels groggy"

A Foggy, Stuffy Head: The True Identity of 'Phlegm-Fluid' Hidden Behind 'Brain Fog' Syndrome

Lately, despite having a lot to do, do you frequently feel groggy as if your mind is completely blocked, or find yourself quickly forgetting things you just heard? If coffee only gives you brief relief and you feel stuffy as if a fog has settled over your head all day, please pay attention to today's story. This symptom is also called 'brain fog,' and it might be a signal sent by 'phlegm-fluid' hidden inside our bodies.