I’m old and chubby now so it’s less of an issue, but I had very low BP all of my Childhood and young adulthood. Like 85/55. I was taken to an ER once after an accident and they were about to start a blood infusion until I told them it’s always that low. I’m sure you’ve figured out to stay hydrated. Keeping fluid volume high is the best mitigant. Take a multi vitamin and electrolytes like Gatorade as part of over hydrating. And then safety protocols of going slowly when standing from sitting or prone position. Always have either furniture to grab or an ability to sit back down if the wooziness starts.

Docs in the stone age of medicine could never figure out a real solution. But good luck to you!!