Not only do many Long Covid patients suffer from P.O.T.S or P.O.T.S-like symptoms, but there are a number of similarities between the two conditions and their management.  The cross-over of symptoms - from breathlessness, palpitations, and chest discomfort, to fatigue, pain, brain fog, sleep disturbance and orthostatic intolerance - is remarkable.  So, do we all have POTS?  To shine some light on POTS and its diagnosis, we spoke to Dr Satish Raj,  a cardiologist specialising in autonomic dysfunction and Professor at the University of Calgary.  Raj is currently leading a study of Cardiovascular Hemodynamics and Autonomic Dysfunction with Long Covid looking to establish the role of autonomic disorder in Long Haulers.