Well, I think 'how' should be 'how much'. Because 'how much' shows the degree of how much the person has worried. Does this make sense?
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VictorycountryWell, I think 'how' should be 'how much'.
Not in the tone and structure in the original! Has the question been "Do yo know how much everyone is worried about you?" then it's fine.
Because 'how much' shows the degree of howtio much the person has worried.