When a sheep falls over it might, if it falls on it’s back, have trouble getting up again unaided.
If my memory serves me right, the term for this condition is kesselling. It’s probably a term that originates in Yorkshire.

I have absolutely no proof whatsoever that the term exists.This little person is in danger of kesselling,
if perchance she does fall on her back then she may well need parental help in uprighting herself.

Kesselring was an entirely different name, as I recall he was a top German general in the Second World War.
He fell over eventually too.