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Thanks for suggestions. Well I ended up watching that programme on BBC2 about those children having neuro surgery. Normally, I can't watch things like that when I'm stressed but it was so interesting and made me feel lucky. I thought the surgeon seemed like such a great guy.
I've had a galaxy ripple, sent a few texts to family, drank plenty of tea, told my husband how I felt, kissed and cuddled the dog and now I feel ok, thank goodness.
It's not often I feel the way I did, think everything had just got on top of me.