I lost my mom to Lung cancer two years ago. Actually she was battleing it and tho I knew there was no way a 72yo was going to beat stage 4 lung cancer I thought we'd have 6 to 12 months left, another Thanksgiving, another X-mas. More time. Then one day she looked so bad from the radiation/chemo we had to bring her into the ER only to discover that she had contracted an infection and it was missed by the daily blood tests.
That day the Docs were talking they were going to get her better. The next day they said her vital organs were shutting down. The day after she was dead. At least her final wakeing moments were spent looking at her grandchildren and maybe God took her then just to spare her those final terrible months of fighting that disease.
I dont care if your a soldier, a medic, a Policeman, that has seen death hundreds of times. Nothing prepares you for watching your mom die.
Im sorry for your loss and will include you, and her, in my prayers.