@SylviaM
I think you have answered your own question - cancer is cancer and is scary no matter how early you get it. You have done nothing to feel guilty about. You have been diagnosed, had treatment and may look forward to recovery. That is what everyone around you would wish. I too
had few of the anticipated outward signs of cancer - no nausea, fatigue, I continued working, and in spite of chemo, most of the time I looked in robust good health! I didn’t feel guilty but I certainly felt fortunate. The decisions others make are just that, their decisions. Be grateful for their wish to be there for you, but feeling guilty doesn’t help them or you. Encourage that fishing trip now rather than later! Plan your trip too. Cancer is a powerful reminder that life is never certain, stuff happens. Everyone needs to seize the moment. Best wishes.