I always have excessive thinking problem will always make me sick. I feel scared sometimes and all this will affect my body because of this fear I will sometimes have breathing problems and chest pain and over yawning shivering issues. This problem started after seeing my grandfather's death after my mind was so disturbed and started thinking too much about death. And I have fear of losing people etc.How to overcome this I want to be bold. All these problems distracted my mind due to this I couldn't able to concentrate on my studies as .