JRT Maggie 18 months old

by Larry Leonhardt
(Texas City, Texas)

Hello:
We just got this cute JRT, she has been great, until this week, she's in heat. But what bothers me is she has started digging, and also pacing in the house, and in the yard, she will run along the fence back and forth, until her tongue is dragging the ground. Is this because she is in heat ?