My 3 year old son has complained of leg pain for over a year. It is always his left lower leg. It mostly bothers him at night and will wake him from his sleep. He wakes crying and sweating from the leg pain. He does experience it throughout the day as well. It appears to be worse when he is sick. Just recently, he was having leg pain and he had goosebumps only on his left leg, no where else. She have told his pediatrician. X-ray was negative and CBC showed slight anemia which he now takes iron supplement. I’ve read that anemia can be related to leg pain. Thanks Although, I have no reason for his anemia. He is otherwise a completely healthy child. He cries out almost every night from leg pain. Thank you.