Thanks for responding,
the main symptoms I got was a tingling in my left arm which was what started my worry and then I got pain in my arm and the left side of my chest which sent me to the emergency department worrying I was having a heart attack.
Since then i've had all kinds of symptoms like a pounding heart,
dizziness sometimes when exercising, which was put down to overbreathing, I also get cold sweaty feet which often makes me start worrying, as well as dizziness (low blood pressure) on standing.
Recently I have also been getting fatigue and indigestion and sometimes I get smothering kind of shortness of breath.
This all started around 8 months ago but i've been severly anxious and stressed for the past couple of years, I also get severe social anxiety.
I've seen several doctors and a cardiologist and had the tests I mentioned done, they say it's almost certainly anxiety.
As for the psycologist idea, thanks, i'm already seeing one at the moment and I do think it helps a little.
I'm still partly convinced i've got a physical problem rather than a psycological one though.
Sorry for the long post, thanks again for your reply.