I highly recommend pushing for a colonoscopy to be safe. Could be internal hemroids, but the scope will give more info. You know your body best-if something doesn’t feel right keep searching for answers and for the right team to help you find them.
2/17-diagnosed stage IV Mets to liver
3/17-Folfox 8 rounds
8/17-liver resection and ablation
9/17-Folfox 4 rounds
12/17-CT showed mets to ovaries and new mets on liver
3/18-clinical trial-pembro and cetuximab
3/19-tumors showing resistance.