Grief is not a disorder, a disease, or a sign of weakness. It is an emotional, physical and spiritual necessity, the price you pay for love. The only cure for grief is to grieve.
Here is an article that you may find helpful:
What is grief? – Source: Mayo Clinic
Grief is a strong, sometimes overwhelming emotion for people, regardless of whether their sadness stems from the loss of a loved one or from a terminal diagnosis they or someone they love have received.
They might find themselves feeling numb and removed from daily life, unable to carry on with regular duties while saddled with their sense of loss.
Grief is the natural reaction to loss. Grief is both a universal and a personal experience. Individual experiences of grief vary and are influenced by the nature of the loss. Some examples of loss include the death of a loved one, the ending of an important relationship, job loss, loss through theft or the loss of independence through disability.
Experts advise those grieving to realize they can’t control the process and to prepare for varying stages of grief. Understanding why they’re suffering can help, as can talking to others and trying to resolve issues that cause significant emotional pain, such as feeling guilty for a loved one’s death.
Mourning can last for months or years. Generally, pain is tempered as time passes and as the bereaved adapts to life without a loved one, to the news of a terminal diagnosis or to the realization that someone they love may die.
If you’re uncertain about whether your grieving process is normal, consult your health care professional. Outside help is sometimes beneficial to people trying to recover and adjust to a death or diagnosis of a terminal illness.