As long as you are excluded from hypoglycemia, hypotension, or heart disease, there is a high probability that dizziness and headache are all cervical spine problems after you finish running and I finish running. Then there are three questions. The first one is that you have a straight curvature or an anti-bow, and then the curvature becomes straight, and the anti-bow will lead to instability of your cervical spine. When running at this time, the brain will be deprived of oxygen, dizzy and have a headache. The second problem is that you have cervical disc herniation, that is, your cervical disc herniation. It is a cartilage cushion to cushion pressure. Running will affect the blood supply to the brain, so it will cause dizziness and headache. Let me talk about leg weakness: there are two problems. The first one is really in our neurology department. What do you mean by leg weakness? My legs suddenly get soft when I walk. After washing, you choose ischemia. The posterior spinal artery is also a blood supply area, so it will lead to ischemia and similar symptoms. The other is functional. Due to long-term walking, suddenly, his legs became weaker and weaker, and he was finished. He can relax himself by resting. There is also a common or frequently-occurring disease, that is, atherosclerosis of lower limbs. Because blood vessels become thinner, or atherosclerosis is accompanied by plaque, blood supply to blood vessels is not good. Under normal circumstances, it is not only mild, but also accompanied by pain or numbness. You can relieve yourself slowly after rest, so this one.