Two shoppers came to the aid of a man suffering convulsions at the Tesco store in Dereham.
The air ambulance was called after a man in his 30s suffered convulsions at lunchtime on Good Friday.
In a discussion on social media, Selina-jade Goodrum said today that she had been in the 'right place at the right time'.
She said on Twitter: 'Fortunately I have my level 3 emergency first aid & also an off-duty nurse was helping.
'I'm glad I could help him to stay stable while waiting for the ambulance who were fantastic, I must say - shook my hand and thanked me when they arrived.'
Her friend on social media, Karl Newson added: 'That's great. Just proves the training came in handy. You helped him and them. So no wonder thay shook your hand. Well done to you both. Bet there are a lot of people thanking you both for saving his life. And in a shop full of people.'
As reported, the man fell in the store and banged his head.
A spokesman for the East of England Ambulance Service said: 'We were called just before 12.38pm to a report of a patient who was having convulsions in Kingston Road, Dereham
'The East Anglian air ambulance was dispatched.
'They treated a man in his 30s who was suffering from a head injury. He was taken to the Norfolk and Norwich University Hospital by road for further care. His current condition is unknown.'
Franz Sidney, who lives near the store, said: 'The area was cordoned off and an air ambulance called. I took some photos of the valiant paramedics. 'We are lucky to have such a good response in rural Norfolk.'
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