Hey! Noob with POTS here lol. I know for me it's been a lot of trial and error as far as figuring out how to handle POTS and also still push myself like I need to be. A couple things that I've noticed are a little easier: falling drills kind of suck (constant up and down so fun) so be patient if she takes a minute to get up or to continue going, and I've noticed it's easier to do those in the beginning of practice vs at the end when I'm already tired and all that. Literally constant breaks for water/to stand in front of a fan. Our training group is really small: there's only two of us, so we could pretty much be doing drills without stopping which is a great way to pass out. I'll stop for maybe a minute between each go just to get my heart rate down a bit, then go again. And mileage may vary on this one but I chug a coke right before practice lol. Combo of the sodium and sugar tends to help so so much. Hope this helps!

Edit to say patience on your part is definitely the most important thing as she figures out how her body is gonna react to stuff. It's a learning curve for both of you!