@lisachawk so sorry to hear about your difficulties with the pattern.
That definitely sounds like something is off. Are you working with a digital copy of this pattern? If so, be sure to check the scale measurements on the copy you printed to make sure that it has been printed true to scale. You also might want to check the finished measurements of the garment you made against the finished measurements chart to see if they are the same.
Liesl says sizing on this is very true and shouldn’t have given you that much difference. And we haven’t heard of this issue from others who have sewn with the pattern.
That said, it is somewhat of a fitted style, so be sure–as Rebecca says–to check your body measurements against the size chart and the finished measurements chart for the pattern. You may need to do some adjustments to get the best fit for yourself.