They say only the good die young, so you'll be right mate.
True story...
When you say:
"When taken I was told it was fine, quite why or how it’s just got to my GP neither of us know"
...brings to mind the time I visited my doctor about a cough that seemed to be making itself rather too much at home for my liking. She did her usual bit of cursory prodding and then as usual came up with a solution that didn't actually involve her in any work, which this time involved saying: "maybe this would be a good time to go back and have that shadow on your lung checked out."
When I had stopped gaping, picked my jaw back up off the floor, I managed, as best I can recall, "what shadow on my lung?"
It turned out that when she sent me for a chest x-ray the previous winter because of a cough, the x-ray that came back featured a clear shadow on the lung. Which she'd not thought worth bringing to my attention.
I know, right?
Anyway, long story short, it turned out in my case to be indeed a cancer. Malignant. Further investigation revealed another nodule. Also malignant.
I think it was about this time that I clearly remember coming back from one of these meetings with the consultants and saying to my wife you know just once just once it would be nice to have one of these meetings that didn't start with them putting on their sad face and starting, well I'm afraid it hasn't been quite as we'd hoped...
Anyway, even though it was quite advanced (thanks, doc), there was good news. Both nuggets were tight, and nobbly. Metastasis is the real end game, and there was no sign of it. both nuggets seemed to have got to their size and then stopped. They could have been there for years.
My half-arsed theory: I got cancer because I used to smoke heavily. I gave up smoking and I took up cycling. Now, as I later read, if there's one thing cancer hates, it's oxygen. Add that to a body generally returning to really bouncing health after a period of sedentary living, and I think the cancer got hit by this lifestyle turnaround, basically said what the hell, and got stopped in its tracks by all the oxygen and broccoli.
Anyway, without wishing to hex anything, that was about seven or eight years ago now (five years with no backsliding and they consider you 'cured'), and I'm fit as the proverbial. As I said on another thread, before having my hip replaced last week (another long story - I'll spare you
) I was told that my blood pressure was perfect, my BMI on the good end of the 'ideal' zone, and my veins excellent.
So, bottom line: it probably isn't. Simple statistics. And even if it is, it's not the end of the world. Being fit - by which I mean healthy in mind & body - is, in my half-arsed belief, absolutely crucial. So, you should be alright.
All the best FF.
Look on the bright side, you didn't have to go oop north. Every cloud...