Why people have thoughts that they will die

We would like to inform you that fear of death and illness are status named obsessive anxiety fear. It is a simple case that can be treated if you have the determination. 
The most essential step for treatment is the confrontation. Face your fears and do not avoid them. Think, can we control disease or death, and can we delay or prevent it? No. 
Therefore, there is no use of thinking, as it will only increase our problems. Death will arrive, whether we want it or not because it is the only truth in this life, and thinking of it only to get lessons and moral and not to fear from it. try to practice activities which make you feel happy . practice sports and exercises. Avoid bad news or any source of tension. Meet new friends and change your routine and you will find that these thought are being reduced and vanished. 

 Itvs beacause of depression feelings 

All theses symptoms are from depression , We would like to inform you that we have already answered your question. Kindly check the link below:
Depression