CUP cancer unknown primary adenocarcinoma

Hi

Had laparascopy 17th May, had a small secondry cancer removed from right side stomach but cannot find Primary. PET scan not showing up primary.

Fast forward to today , first appt to see oncologist today, told incurable and can either watch and wait and have Pet scan every 3 months till it shows or can start a MOP chemo.  Was so positive and today feel like been knocked for six.  Going to see oncologist again in 2 weeks to discuss things.

Has anyone else got CUP 

Thank you for reading xx