TLDR: it took less than 2.5 hours for the NHS to confirm I didn't have a heart attack (but I was right to check)
Yesterday afternoon, on a train from Bristol to London my left arm ached for a few minutes and then I had a pressing pain in my chest that lasted about 5 minutes. Google said it might be a heart attack. Obviously I completed my journey to Norfolk and got to bed and then told my wife what might have happened. We agreed to talk to 111 in the morning. I'm British, why cause a fuss!?
I called 111 this morning. All my details were taken succinctly. A clinician called back exactly 30 minutes later, as promised, and she asked me to go to A&E. I arrived at A&E and they had all my details. I had an ECG within 2 minutes. 5 minutes later I was sent to the Outpatient Acute Medical Team and within 5 minutes of arriving had received another ECG and my bloods had been taken. 5 minutes after that a clinician talked me through the ECG chart and was stethoscoped all over. 5 minutes after that I was sent for an x-ray - I walked straight in and was imaged immediately. I went back to the previous Team and had to wait 15 minutes for the x-ray results to come back. The conclusion is I didn't have a heart attack and I did do the right thing by going to hospital. I was there for about 2 hours and 20 minutes, everyone was wonderful and I'm not unwell.