Scared of a recurrence

I don't know where to start because I'm scared to death. I already made a post about my situation but I need to talk more about it with people who understand my situation. My mother, my beloved mother... my reason for living. In 2020 she underwent surgery for stage one seromucinous adenocarcinoma cyst. six cycles of chemo and everything went well. In recent years the only notable findings in the CT scans have been the incisional hernia and a spigelian hernia. the other day, after eating a lot of raw vegetables, she started having very bad stomach pain, followed by vomiting. we rushed to the emergency room where they did an ultrasound, for which they didn't give me the report, saying that they saw the dilated intestinal loops with effusions (of what?) they didn't do a CT scan, they did an abdominal x-ray which showed some air-water levels. they discharged her, telling her that there were no surgical emergencies and to continue the follow up. her oncologist wants her to have a CT scan.. and I'm afraid he thinks the cancer has returned!!! but then why not tell her this in er? I read and reread posts in groups and no one has discovered a recurrence in this brutal and sudden way, her last CT scan was only four months ago... what's wrong with my mum? I'm not eating anymore, I'm desperate...