My stomach hurts all the time and i get full quickly. my father is dying with cancer, mother in hospital and i am a nurse. is it just stress?

Don't assume: Stress likely affecting you but these symptoms could indicate something more serious such as an ulcer. Given your age >40 you should see your physician. An upper endoscopy/egd may be warranted. Certainly a history, exam and blood tests are warranted. A trial of acid blocker for 10-14 days is worthwhile but don't avoid an evaluation especially if symptoms persist, worsen or associated symptoms.

Too much Stress: You are going through so much. Stomach hurting all the time is most likely indication to seek assessment by your physician for anxiety and depression.