Not sure this is right place to post but a bit desperate as my son(40) has had problems with vit B12 deficiency(and others) and was in hospital 8 days after emergency last year, he got injections and then tablets, also takes D3 and multivit. I rang him yesterday and he could hardly speak for sobbing he is depressed and says he is exhausted but cannot sleep due to his brain being on overdrive, cannot relax and has to get up and walk about. Doc has given him anti-depressants and sleeping pills which he says don't work just make him feel dopey. Last year doc said his thyroid results were normal?? could he have adrenal problem? I am Hypothyroid(Hashi) and celiac and his father is diabetic(2). Can anyone recommend anything natural that he could take that might help, would CoQ10 help? other recommendations?