Hi there.according to what you have mentioned, patient is suffering from post traumatic stress disorder where in after major loss in life like beloved person's death the patient goes into state like depression. Symptoms include Difficulty in concentrating and remembering details, and making decisions, Fatigue and decreased energy, Feelings of helpless, hopeless and worthless, Insomnia, early morning wakefulness, or sometimes excessive sleeping, Irritability, restlessness, Loss of interest in activities which were pleasurable before, Loss of pleasure in life, Overeating or appetite loss, Persistent aches or pains, headaches or digestive problems that do not ease even with treatment. Persistent sad, anxious, or "empty" feelings, crying episodes, anger outbursts, Thoughts of suicide or suicide attempts. Treatment includes relaxation exercises, discussing to your loved ones about your problem, psychotherapy, anti depressant medications, read motivational books, quotes. Please do consult psychiatrist and attend counseling.