How I overcame anxiety and how I help my children prevent it

I’m convinced my son has some mild anxiety.  Since he was a baby, as soon as he started to cry,  if he didn’t see me within 1-2 minutes, he would get hysterical and actually throw up.  He had terrible stranger danger, and didn’t like anyone else holding him, not even his extended family.  Now he is 6 and has outgrown a lot of the normal anxiety signs in children but according to his tongue diagnosis, he still shows signs of anxiety.  (An anxious tongue in TCM has a red tip and may have a crease on the tip, almost looking like a heart.)