Trying desperately to figure out WHY my boyfriend is so depressed.. THIS IS SERIOUS..Professional help desired?

Getting that appointment with a doctor is very important! Insomnia can mean he might have a sleep disorder. Sleeping disorders can cause a variety of issues. When someone has this problem they are actually experiencing a lack of oxygen. Lack of oxygen can cause anxiety, depression and mood problems, lack of concentration. What he really needs to see on top of that is a counselor. Its really great that you and his mom are there for him. Ask his doctor to run vitamin panels along with routine bloodwork. Its amazing what you can find out by running a bloodtest. Check thryoid levels too! tell his doctor you dont want the simple thyroid levels drawn but a comprehensive one! and get that appointment for a counselor.