My friend is only 2 years old. Yesterday, he distributed leaflets and ran to more than 1 buildings. Last night, his calf and joints were very painful. What is the reason? And her legs are cold.

This is obviously a symptom of arthritis, but it should be a symptom of senile diseases if it hurts both in cold weather and rain. At the age of 2, this disease is a headache. She certainly didn't protect herself when she was a child. As for the leg pain, you didn't describe it clearly. Can I understand that you are tired from running too much?

The problem of joints is a serious problem for girls who are running flyers outside. Usually, when it is cold, they soak their feet in water and put them on their knees. This disease can only be raised, and there is no good way to cure it. Ask the doctor what to do specifically