Did Charles Dickens suffer any mental illness?

Charles Dickens had many children:

Charles Culliford (Charley) Dickens (1837-1896)Mary (Mamie) Dickens (1838-1896)Kate Macready (Katie) Dickens (1839-1929)Walter Savage Landor Dickens (1841-1863)Francis Jeffrey (Frank) Dickens (1844-1886)Alfred D'Orsay Tennyson Dickens (1845-1912)Sydney Smith Haldimand Dickens (1847-1872)Henry Fielding (Harry) Dickens (1849-1933)Dora Annie Dickens (1850-1851)Edward Bulwer Lytton (Plorn) Dickens (1852-1902)