It has been said that grief can mimic insanity. When you are in grief, it is certainly a turbulent time - on many levels. You are not crazy, you are not going insane - you are grieving. Here is a list of typical grief reactions:
Physical: Headaches, dizziness, exhaustion, muscular aches, menstrual irregularities, sexual impotence, loss of appetite, sleeplessness, tightness, hollowness, over sensitivity to noise.
Affective: Anger, guilt (including death causation, cultural role, moral, survivor, and recovery grief), anxiety, helplessness, mania, emancipation, relief, sadness, shock, yearning, numbness, blame.
Cognitive: Depersonalization, disbelief, confusion, idealization, preoccupation with image, search for meaning, sense of presence, hallucinatory experiences.
Behavioral: Loss of patterns of conduct, interpersonal changes, withdrawal, avoiding reminders, over activity, crying, appearance of traits of the deceased, tiredness.