Well Im trialling this at my GP's advice because I think he was at a loss for any other suggestions and because I have to wait three months before I can see a specialist. My main problem is POTS. So far ive found that the ginseng gives me a major mood boost about half an hour after consumption of a VERY small dose. It gives me lots more energy and does improve my standing and cognitive functions but jitteriness is an issue especially a few hours after injestion. Any thoughts??