@Lilysea @3TomatoesShort to me, dizziness is what I really associate with POTS, the rest could 'just' be ME/CFS. But either way, I have heard that both the tilt table and standing test are unreliable, and 'failing'it doesn't necessarily mean anything. I was told the tilt table test wasn't worth doing. I did the standing test and only had the required results on the third day, which tracks as my symptoms were much stronger. I was advised that if you have a diagnosis for something else it's not>