There is a death of a Susan Turner, in Dunmow area, in JAS quarter of 1843, ref 12 62. Unfortunately this is before the indexes give age at death.
You will have to get cert (or see parish record) to get age at death to see if it is yours.
Or I dont know if the Essex Record Office have any workhouse records. Would be worth asking them. It might have her discharge from workhouse. If this is her it might say 'died'. If not her, it might give a clue as to what happened to the right one.