I am having b/l lower leg pain since nearly 2 years.. Increased after running, pain is more for 2 or 3days after activity, tender distal medial tibia?

?shin splints. If the discomfort is not in the knees but in the lower legs below the knee, these may be shin splints due to overuse and muscle irritation especially brought on by running. Try reducing your running, ice the legs and , if you can take them, nsaids like Ibuprofen or Naproxen may help. Theses measures may also help knee tendonitis, etc. For more advice or worsening symptoms, see your md.