My heart goes out to you, I do wish you the best of luck in what the future holds.
I agree with Moscow, finding out sooner than later is key in this, but I also understand why you want to be on British soil for this.
If its any help until such time as you get something back from the doc, may I recommend some helpful diet tips to fight the possible thing.
1: AVOID Simple Carbohydrates
2: Avoid Refined foods, sugar, white bread, white rice...GO Brown on everything
3: Avoid Processed Foods
4: Website to look at, follow the foods in Green, avoid the foods in red
Book to accompany: http://www.amazon.co.uk/PH-Miracle-Balance-Reclaim-Health/dp/0749939818/ref=sr_1_2?ie=UTF8&qid=1289642593&sr=8-2
5: If you can, get your hands on some Liposomal Vitamin C
6: If you can, get your hands on some CV247
7: If you are confirmed (And I hope not), contact Yes to Life asap. Out of all the organisations, quango's and charities (90% of which where bl**dy useless), these people were so incredibly informative and helpful. You get a free consult on the phone with THE top expert in the UK http://www.yestolife.org.uk/index/y2l~home
8: Lots and of veg and pure juices.
9: Book to get http://www.amazon.co.uk/gp/product/0954463684
Best of Luck Billy and if you do need any help please don't hesitate to contact me.
PS You have probably guessed by now this has been a subject close to my heart.....so thouroughly investigated.