One thing to check is iron levels. My aunt had symptoms clear up when iron deficiency was addressed by her doctor.
Doing some work to set up a nightly routine to improve sleep density may help.
Pro Episode Sleep Density
https://thereadystate.com/2017/01/pro-episode-sleep-density/

Breathing and down regulation may help
Saturday, June 30th, 2018 – Breathing & Down-regulation

Saturday, June 30th, 2018 – Breathing & Downregulation

Sunday, June 10th, 2018 – Breathing for Down-regulation

Sunday, June 10th, 2018 – Breathing for Downregulation