Hi Gemmal,
There was a time I spent probably half my time on the computer with many hours on this Site and the rest of the time freaking out about my Symptoms and Health.
I'm glad to say that I am a lot further on from that now, but It takes a gradual process of re-building your Life. You will still be aware of your bodily symptoms and fret about some Disease or illness, but if you begin with small steps into normal Life again, it will not only take your Mind off of the Anxiety, you might actually find that you are more capable than you realize. I know you are thinking, 'Oh Yeah', easy to say, but you can. And the only way back to a normal Life, is by leading a normal Life.
Only 4 months ago, I couldn't sleep, eat, hardly walk, go out and all that stuff.
It was scary at first, but I started with small steps. And when you bump into people that have just got over Cancer, it makes you realize how precious Life is and the more you sit dwelling on what you might get the more ill you will feel.
Do those things you have always wanted to do, treat yourself, wear your best clothes, go out for lunch, sit in the Sun. Life is precious. Enjoy it.