Everyone has something that everyone doesn't want to say to others. Your boyfriend loves keeping in good health, which shows that he is a detail-oriented person. His thinking is different from that of normal people. Since you don't believe that he has another woman, why can't you keep the status quo? Some things don't have to have a result, sometimes it's better to be confused. Whether you think too much or not, as long as you still like him. Whether he has changed or not, as long as his love for you has not changed. Nothing else matters.