When the weather is hot or the air is sultry, there will be symptoms such as dizziness, weakness of limbs, difficulty breathing, rapid heartbeat and inattention. How's it going?

When squatting, your eyes will be black, dizzy and unstable. Generally speaking, it is normal, because when squatting, the blood is concentrated, suddenly standing up and the blood is scattered, and the brain suddenly lacks blood supply. Another reason is mild anemia. I suggest you go to the hospital to check the most reasonable explanation.