So sorry to hear the news about your sister, and the recent diagnosis of pancreatic cancer at a young age.
It can be very hard to take on board such a diagnosis, and its not unusual to have a whole range of emotions which you are describing. Its difficult to be a "bystander", so to speak, and watch this happen. And of course its not fair - unfortunately, cancer is no respecter of any situation and life can seem so cruel when a person has already had plenty to deal with.
I think once you know a plan of care for your sister, things will begin to settle a little Rose. Its often the unknown and waiting for some form of "action" which causes anxiety and issues. And caring for her will be something which you will naturally do - its a case of being there to support her, and practically help her so that she isn't struggling with everyday chores while trying to recover.
In terms of the risk of pancreatic cancer, then with one family member having been diagnosed, there is no additional risk to yourself or to her child. The risk begins to be more of an issue when two or more family members, in the same bloodline, are diagnosed.
I hope this is reassuring Rose?
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Pancreatic Cancer Specialist Nurse
Pancreatic Cancer UK
support line: 0808 801 0707