Only recently have I taken a few stumbles due to POTS and it was a wake up call for me. I found that TriOral rehydration salts or Kinderlyte (advanced? Pro? Can’t remember but it’s the adult one) both have the salt needed for my POTS (TriOral has 2.6g and Kinderlyte 800mg.) this helps a ton, especially because it’s salty to I dilute it, causing me to drink more water. Along with a salt regimen I started a beta blocker and an exercise routine. Using swim therapy and recumbent exercise I have started to build more orthostatic endurance. Falls are definitely scary, so definitely try different ways to reduce the symptoms. Hope that can help!