I add my welcome, @dovebeloved. I'm also tagging @cpl who has GCT ovarian cancer to join this discussion as well as @naturegirl5 who knows about the fear of recurrence, as do many members here.

You mention that you don't know how to feel: sad, motivated to research, hopeful, concerned, in disbelief. I'm here to tell you that all those feelings are valid. It's not surprising that you're on a rollercoater of all of the above.

Have you talked with your cancer team about the returning symptoms yet?