Grief is the normal, natural and inevitable response to loss, and it can affect every part of our life, but it is varied and different for different people. It is common for people to experience intense feelings such as sadness, anger, anxiety, disbelief, panic, relief or even numbness. It can also distort our thinking, so that we may think we will never get over this, or we may think we are going crazy. Grief can cause difficulty in sleeping and can lead to physical symptoms. Dealing with a significant loss can be one of the most difficult times in a person's life.