My wife was diagnosed with Thyroid cancer some years back.
She ended up having her thyroid removed completely. She was diving 3 weeks later with her Doctors approval (What a girl

)
The biggest problem we had was getting her medication right (It's not an exact science). She was very tired and generally not 100%, unfortunatley the oncologist she was seeing on the NHS was not great and kind of dismissed us with the view that we should just be grateful for the quality of life she had.
Fortunately we tracked down a specialist, did some research and she is now using a combination of T3, T4 and Armour Thyroid which allows her to lead a completely normal life, including diving when the fancy takes her.
Drop me a pm if you want any info on the specialist and I'll gladly pass his details on.
Daz
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Underwater rock juggler extraordinaire
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