Good morning all.
After all your good advice I managed to see my Dr on Friday morning. I had the usual tests ECG, blood pressure, blood tests, etc. He wasn't unduly worried about any of them (still waiting for blood test results). That has put my mind at ease but he has told me to go to A&E if the chest pain gets any worse, which I can assure you I will do.
I feel more at ease now that the Dr isn't too concerned about this.
Thank you all for your advice and patience.