Hi, thank you for the quick response.
I do not believe I have had any of those tests. Approximately 3-4 years ago I thought I was having palpitation type symptoms with a faster than normal heartbeat and breathlessness. At the time my GP referred me to the hospital, however at the time the conclusion was they couldn't find anything irregular. Although from memory no 'extensive' testing was carried out. However it was some time ago and I can't remember the exact tests that were carried out.
Since then I have had no further testing at all for any of the conditions and none of the tests you mention above.
I have been on no medication for 12 months however prior to that I was prescribed to Citalopram for approx 6 months as I suffered from moderate to severe depression.