IF the details are correct, she complained that BOTH of her legs hurt. It would be extremely uncommon for a person to have bilateral blood clots in their legs. And the clots below the knee rarely migrate to the lungs. Its the deep veins of the thighs that are the potential killers. I have no idea what the doc saw. Or if this woman was a frequent flier drug seeker who always came in and yelled at/threatened staff if she didn't get her pain meds. (This IS common)
But there's a saying in medicine, even scam artists get sick. So ALWAYS address the problem. Terrible for this patient and her family.