I would try to change her feed however she's on pasture with NO grain and she's actually seemed to get a bit worse!
I did look up the smartcalm though! Were going to the vet for a coggins and shots today and to see if she's pregnant. If not she'll be started on it as soon as I can order it!
(She WAS bred but ultrasound said no baby but three breeders have asked me if she's pregnant lately so she's being checked)