Thanks msmerri for your response. It may appear that we are not close to each other but on the contrary we are very close together as a family. The problem is when it comes to this mood disorder when my son just goes mute and prefers to be left alone. Because he is a nurse, he flatly refuses any medication. I think he is the type who wants to appear that all is ok mentally to avoid stigma associated with being diagnosed as depressed. Yesterday we had a big family meeting where we discussed his condition openly and just called it what it is. He promised to see a GP by end of this week.