Simply looking at whether your weight is overweight will lead to excessive pressure on your lower limbs, and personal running posture will cause excessive pressure on your legs and some numbness. You can soak your feet in hot water, do a foot massage, or step on a wooden pole with your feet and stretch your lower limb muscles appropriately to see if there is any relief. Stop the recent running exercise first, and then plan your own running after the relief.
Warm-up for running must be: warm-up 10- 15 minutes, activate the stability of lower limb knee joint, do more squats, make the hip joint flexible, just lift the leg and Takaso to draw a circle, move the ankle, warm up the upper body properly, and stretch for 10 minutes after exercise. The specific content can be searched online.