Grief is an automatic process in which a period of denial helps buy time to process the loss. Although we tend to believe grief passes through consecutive stages, it doesn't. Emotions come and go in no particular right order. We respond with numbness, shock, denial, intense sorrow, pain, anger, confusion, loneliness, emptiness, depression, guilt, fear, abandonment, isolation, physical symptoms, irritability, fantasy, restlessness, disorganization and even moments of hopelessness.
Grief taxes the immune system, making the body more susceptible to illness. Physical symptoms can include headaches, fatigue, appetite loss, dizziness, heart palpitations, numbness and insomnia. The overall feeling is one of exhaustion caused by the intensity of emotions.--Dr. Linda Mintle