I think it's in our nature, Northerngirl, to empathise with others going through the same as us and that causes the bond.
I do realise your biggest fear is what they might find but - and I do know this is easy to say and hard to do - but worrying won't change the situation or add/take away anything from it. But it is hard to do.
If they do find anything concerning then that is when you can think about things differently but not until then. At the moment it's likely that nothing will have spread as it is very early days. I'm sure if the consultant was concerned by your symptoms, they'd have sorted you out within days. That is what happened to my father in law when he had cancer and also a customer of ours who has just had a diagnosis. Both presented to GP with symptoms and were in hospital for tests the next day and both kept in over night while the tests results were rushed through. It gas happened that quickly with just about everyone I know.
I presume you discussed the symptoms you have with the consultant on Thursday? They definitely would have done things immediately if there were concerns re symptoms.
So if you can try to retrain your brain to focus on those things, rather than ifs and buts, it should help.
But again, I know that's easy to say. I used to be a huge worrier but am not any more. My life has changed so much that I really do know worry is fruitless and in itself can make you very unwell.
Sending you a big hug and if you need me, I'm here for you xxx