I had the same symptoms and went to the doctor who said I was ok. A few days later I had a severe heart attack and ended up in treliske hospital.
it was diabetes that led to the heart attack.
living in cornwall you are doomed
just trying to be helpfull, cornwall is a very nice place but all the worst doctors end up living here. I do not post on this forum as it has some very sad people on it. BUT Richardp needs to get help before ITS TO LATE.