So I've been feeling shite for a while, racing heart, dizzy, tired, nauseous, brain fog etc. I went to the GP earlier this week and she thinks it might be PoTS and everything fits. She made me lie down then stand and took my blood and pressure heart intermittently. She has referred me on but in the meantime what the fuck can I do to feel human? The hot weather isn't helping at all. I'm drinking loads, eating small meals more often than I normally would but I still feel like shit. Yesterday it was cooler here and I felt 10x better but today it is back to hot and I'm back to feeling like arse. Is there a magic something, anything I can do feel halfway human? I'm not used to lying around but it is all I am able for on days like today, any help would be gladly appreciated.