The head becomes uncomfortable on a cloudy day may be a physiological condition, or it may be caused by migraine, cervical spondylosis and so on. Patients should seek timely medical treatment to clarify the cause of the disease. 1. Physiological situation: Normal people may experience head discomfort on cloudy days when they do not have a good rest and are under stress. Such people should pay attention to keep their mood happy and take moderate physical exercise. 2. Migraine: On cloudy days, low air pressure and cold weather will lead to vascular spasm, causing migraine, at this time the patient will have head discomfort, head pain on one side, nausea, vomiting and other symptoms, you can use ibuprofen and other drugs under the guidance of the doctor for treatment. 3. Cervical spondylosis: When it is cloudy, patients may stimulate cervical spondylosis attack by blowing cool wind, at this time, patients will also have head discomfort, shoulder pain, upper extremity radiating pain and other symptoms. Such people should pay attention to rest, if necessary, under the guidance of the doctor for local physical therapy and drug treatment. Head discomfort on cloudy days may also be caused by other reasons, it is recommended that patients seek medical attention in a timely manner, under the guidance of the doctor for treatment.