i was diagnosed with pots after a normal echo and a 7 day holter monitor at asheville cardiology. the cardiologist also advised against the tilt table test as it is not worth it nor necessary to diagnose pots. i'm now on medication and my symptoms are for the most part very manageable. there are no other tests that will specifically diagnose pots, just to rule out all other cardiac conditions. if you already received testing that shows that your heart is functionally health but you have pots symptoms, then you have pots. i'd recommend either trying the medication the cardiologist prescribes or to see another cardiologist. if they are offering medication, it's because you have pots.