So sorry to hear your news, but it seems that your chemo is doing the right job.
I guess it would be best to keep going with the chemo plan and hope everything will keep on shrinking and you can try surgery eventually. Until then just stay with chemo. You can change the drugs if you have serious side effects, but you did not mention any of them so I guess it is tolerable.
Add oil and God bless.
Daughter of Mum age 56, NRAS-mutate Q61R
2017-05: Surgery with stoma. T4N1M0. Stage3C. Xeloda No Radio. CEA: 7.3, 8.0, 9.8 CT Scan: Multiple lung nodules. Stage4.
2017-09: FOLFOX + Avastin, 85% for serious diarrhea CEA: 7.0, 4.7 (10/10), 3.7 (11/10), 2.9 (12/3), 2.2 (12/21), 2.4 (01/09), 3.4 (2/24), 2.6 (3/9), 3.6 (5/24)
2017-11: Stable CT
2018-03: Folfox Allergy, 2 months chemo break
2018-05: Stable CT result, 3 months break
WISH ALL MIGHTY GOD HEALS MUM WITH HIS MIRACLE