Thanks Laurie for your response. Indeed, it is very frustrating watching my son wasting away and being unable to do anything to help the situation. Not sure why as a medical person he does not want to be treated. He says the drugs are addictive and that he will not come out of them easily due to withdrawal symptoms that he has seen at the hospital where he works. As you put it correctly, he behaves as though any medical intervention is not helpful that he will be okay with time.
Yes, he lives with me. His wife and son are in another country, waiting for their visa to join him. Wedding was in 2021 and we are still awaiting for response from immigration dept. While this may be the reason that is depressing him, but he has been in this same situation in 2019 when he split up with his previous girlfriend of 3 years.
I have not expressed anything to his wife but he tells me she is aware that he is not been working for the last 4 months and that he is depressed. I will now talk to her privately as per your questions and hear what she actually knows and what she is concerned about.
Thanks again very much for your response that has made me think I need to approach his wife and get her thoughts. They last saw each other in February this year