A comprehensive physical examination is recommended. From the medical and health point of view, there may be many situations in this situation. The initial judgment is that the brain lacks oxygen. When people think, the brain is the most important working organ, and the oxygen consumption is above 20% at ordinary times. If you use more brains, it will reach 30% to 40%. If there is insufficient oxygen supply to the brain, the brain mechanism will respond to remind you of hypoxia and headache. This is a self-protection mechanism of the human body. My advice to you now is to do moderate exercise (aerobic exercise, jogging, Tai Chi, dancing, etc. ), and it is necessary to do neck exercises. Take a deep breath at ordinary times (breathe in until the end, and then breathe slowly until the end). Pay attention to your diet. Usually eat less full and fatty food and eat more vegetables. Then there may be a small amount of blood in the neck blood vessels, or it may be because of the usual living habits, long-term smoking, drinking, hyperlipidemia, emotional tension and other factors (environment), which will lead to the decline of blood vessel elasticity and excessive blood impurities, affecting the normal operation of the blood system. With the increase of age, there may be diseases such as cerebral infarction in the future.

Now, the most important thing for you now is to go to the hospital for a comprehensive examination to see what is wrong with your body, and then change your usual eating habits and eat reasonably. Except heredity, all health problems are caused by eating.

Maybe it's a little serious. If you have time, do more exercise, eat more vegetables and eat more digestible high-protein food. Exercise can speed up blood circulation and expel useless garbage in the body (mainly blood vessels) in time. Good food can make your body at its best. Relax more at ordinary times and don't put too much pressure on yourself. Cultivate more hobbies.

I wish you a speedy recovery. Academic success.