Sharon Rawlinson from Newark has described her pet dog as a guardian angel after it sniffed out a cancerous lump.
Sharon only went to the doctor because her King Charles spaniel had been nuzzling the area where the tumour was growing.
She was diagnosed with breast cancer.
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Herefordshire singer Ellie Goulding is urging people to switch off their lights to support the annual Earth Hour campaign.
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"This is going to cost LOROS thousands of pounds which could have been spent caring for terminally ill people."