potty training affecting sleep?

Surely Funke

We started potty training my 25 month old on Christmas Eve. Lately, she's crying when I put her down for naps and bedtime, and sometimes not even napping. Some nights she cries in the middle of the night when she used to sleep so soundly. This just started a few days after starting potty training. Has anyone else dealt with this and is it related to the stresses of potty training? Or something else?