I have been experiencing extremely high blood pressure, VERY raised heart beat (sometimes erratic), a solid, tight feeling across my chest, hand tremors, shortness of breath and dizziness when i exert myself. This is not all the time but mostly. Could be climbing stairs, def when i have to go down and back up again quickly, having a dance for a minute or two, digging in the garden, hoovering this type of normal activity. On resting for a few minutes these symptoms go away and everything returns to normal. I have just seen a Cardiac specialist who is firstly referring me for a CT Angiogram. I had an 'at rest' ECG but this showed completly normal results, (which i knew it would!), an ECG Treadmill excercise would've been more useful but the hospital only do these in the mornings, I'm rubbish at doing mornings lol. It would be helpful for me to know if any of you have had this same health problem and what was done for you, what sort of diagnosis/treatments did you get and how are you now?