Could you explain the exact reason for my continuous leg pain?

Hi doctor,

I have had continuous lower leg pain for more than four years. The pain is between knee to ankle. I feel weak legs and bones and also have a burning sensation and numbness. I am taking D3 and B12 supplements for around two years and still, it is low in my body. Please find the attached health checkup report. Is it something related to shin splints? When I touch the leg I can feel the shin bone detached from the muscle. Could you let me know the exact problem and the treatment for the same? I am currently taking medicine for generalized anxiety disorder and migraine.

Thank you doctor,

I have pain in both the lower limbs. I can feel the sensation all the time. When I walk it started paining. If I run, then I feel more pain which is more pressure on the leg causes more pain. I feel like both the legs are very weak. Right now I am in a sitting position and I can feel the sensation. When I press the leg, it pains. Yes, I am able to walk with slippers and get up from a sitting position. I am not having any issue with my knees. But, if I sit in a particular position for more than 10 minutes, then my legs get numb. I can feel the sensation all the time.