My thoughts are that she layed eggs. They pace when they are ready to lay and can't find a place that they find suitable for their eggs. Did she dig the hole with her back legs and have her bottom tucked down in there?

If you want to leave the eggs in the ground (if she layed eggs) then the best thing is to keep the wire cage over the nest and start looking for babies in a couple months.

You can dig them up if you want. It's not hard to hatch them on your own if you have the right temperature and don't let them dry out. I did it for the first time 10 years ago when I was only 14 years old and those babies are all grown up now. I enjoy watching them hatch so I dig them up. But they do require attention every day to make sure the conditions are right.

Good luck!