Crystal - you're not been too hard at all, you've said it very nicely to me I don't mind at all. This is what these forums are for, and you're probably right - maybe I am worrying too much.
I guess, it's just that he didn't really explain it to me. I know most these doctors don't usually explain much to us mere patients (ha ha). It would be nice if they did, as it would alleviate the majority of our concerns.
I've left a message for him to call me, just so I can be reassured that there is no risk at the levels I am imagining. xx