My father does not suffer from any problem, but he has an anxiety issue. If he hears about a friend/relative suffering from anything, he feels that he has it too. Even Dr. APJ Abdul Kalam's death affected him. He complained of chest pain soon after and was fine after taking ENO. Recently, he has started complaining of pain in his knees. He is all fine when he plays tennis, but says that he cannot walk. He has recently had a cataract operation too. He refuses to see a doctor for an MRI because he knows that the diagnosis will be that he is absolutely fine. How can I help him?