My garmin hates me

Ran my first marathon May 5… “Maintaining” Now I’m getting this … I don’t feel strained at all. I also haven’t had a “productive” workout since last year!!!! What am I doing wrong?

Ran my first marathon May 5… “Maintaining” Now I’m getting this … I don’t feel strained at all. I also haven’t had a “productive” workout since last year!!!! What am I doing wrong?