So sorry to hear about your diagnoses upgrade. I had stage 3c right sided crc in July of 23 and did 12 rounds of 5FU with 2 rounds of ox which stopped due to allergic reaction. Seemed to work and was getting Ct scans every 3 months in abdominal and chest and they skipped an abdominal one round during monitoring and it appeared in the vaginal canal and iliac nodes and left tummy muscle. We are back on folfiri this time and it’s cleared it all up again but we will be on it indefinitely as a maintenance drug to keep it at bay. Unfortunately right sided is extremely aggressive especially in women and it only has a 13% 5 yr mortality rate. I plan on making that and more so I can see my son graduate college. Just saw him graduate HS! Eat healthy, keep positive! Do something you love for you, pray. We got this!