Yes actually
Restlessness, glass surfing, digging or scratching at things, decreased appetite, and smaller or no stools are all the signs.
It wouldnt hurt to put her in a lay box just to see what she does. Sometimes they will gold onto the eggs if they dont find a suitable or comfortable place to lay them. This can cause some bad complications.
Just make her a box with warm moist sand or a mixture of sand and potting soil with no chemicals or fertilizers added to it. And let it be around 8+ inches deep so she can burrow and dig. Make sure it's only damp enough to hold its shape when dug in.
-Brandon