What is the cause of constant sadness, distress, and tension, the feeling of heaviness in the chest, and the perpetual thoughts and fear of death, and losing the taste of life?

Feelings of distress can be due to organic or psychological reasons, and these are diagnosed by doctors. Thoughts of death and fear of it are commendable, but if they exceed the limit, they become obsessive thoughts. If there is no aforementioned reason, it may be due to jinn possession or sorcery, and in this case, one should be diligent in performing Ruqyah (Islamic exorcism).