Dad’s sudden cancer diagnosis and death

In early January 2025, my dad collapsed suddenly at home and required CPR. Thankfully he was brought back around and taken into hospital for various tests to be done. Upon arrival, it was noted that he may have had some seizures. Throughout the next few days, it was then discovered he had diabetes, something he’d been unaware of. This led us to believe the diabetes had caused his collapse. Over the coming days, dad appeared to perk up but tests were still being carried out. He was then transferred to an oncology ward where we were told, doctors believed he had lymphoma. Doctors and staff remained positive and reminded us that because my dad was a young, fit, 54 year old man, treatment would be available and things were looking positive. 12 days after dads admission, we as a family were called into the hospital and spoken to by the doctors. They informed us that my dad had cancer everywhere in his body, no treatment would help and that he only had a matter of days left. Just 24 hours later, my dad passed away. As a 29 year old girl, this has completely floored me. I find myself angry and confused at how he went from being healthy to dying within 2 weeks. Has anyone else experienced anything like this? We’re 8 months down the line and I still find myself feeling numb. I’m hopeful some of you will be able to share some coping mechanisms or ideas of things that have helped you navigate your way through grief. Thank you.