Posted 1/20/2020 3:14 PM (GMT 0)
Does the lightheadedness happen more when she is standing and upright, or does it happen equally often when she is reclining or lying flat? Is there also an increase in heart rate? Especially for someone her age, POTS should be looked into as a possibility. Herxing can aggravate POTS, too. There are therapies that mitigate it, if that's what is going on for her.