Feel cold and hot alternately scalp numbness dry mouth how to return a responsibility?

It may be human psychological and nerve reflex: (1) It may be cowardice. (2) It is more likely to be psychological rejection or disgust. (3) Of course, scalp pins and needles may also have other reasons, such as microcirculation disturbance and slight cervical lesions. If so, the blood in the head does not circulate and is sluggish. Take more medicine to activate meridians, exercise more, and try not to lie on your side when sleeping. When you are nervous, you must relax. You don't mean to rest without doing anything, but to be calm inside. Don't think about things you can't figure out yet, and don't think about things that get annoying when you think about them. No matter what you do, you should put your heart down, take your time and take it lightly. Put aside distractions and let nature take its course. It's okay. Don't worry. ~ I think so, because a lot has happened recently. I also thought a lot, so I think this human body is thirsty because of lack of water. When the weather is hot, people do heavy physical labor, lose blood, burn, vomit and diarrhea. Because of high temperature (heatstroke), people will feel thirsty, which is caused by serious water shortage in the human body. In this case, people tend to be thirsty, gaunt and their eyes collapse. Symptoms such as dry skin and inability to stretch. Some people will have thirst symptoms because they ate too much salt that day. Solution: If they can eat a salt-free diet every day, the thirst caused by excessive salt intake can disappear. In fact, thirst is a unique protection mechanism of human body, which can prevent human body from dehydration. Generally speaking, adults need about 2200 ml of water every day. You can get 1000 ml of water from food, and the other 1200 ml should be supplemented from drinking water to meet the physiological needs of human body. Once the water in the body is balanced, this "protective" thirst will disappear.