How Long Die Melanoma When A Person Has Melanoma (skin Cancer) And The Operation Is Done. How Do They Know If They Are Dying?

When a person has melanoma (skin cancer) and the operation is done. How do they know if they are dying? - how long die melanoma

Mine was a Clark Level III. and in my ear.
I mean, I hear people say, "she disappeared the operation for melanoma, and said everything was. Then a year later, he was not good, and had died after 10 days," How long is "not so good" death? Can you feel comfortable in the week before the death?