My partner has been sick for over a year. He is so fatigued he cannot do the most basic things. He constantly has indigestion, ongoing headache, sweating. He has all kinds of blood tests. He has had an mri. He has had heart monitor. He has seen a natropath and was given astragalus. it will not go away and is getting worse. Doctors now say they have no idea and maybe hes just depressed. Where do we go from here. Its affecting everything he does. He cannot remember things. He finds it difficult even to drive a car. Please steer us in some direction..