bethennyfrankel is opening up about her health issue, explaining to her Instagram followers about her battle with postural orthostatic tachycardia syndrome (POTS) after receiving comments about the change in her physical appearance. In the video she posted, the "Real Housewives of New York City" alum detailed her suffering from a severe dehydration issue and shared that her doctor has associated the symptoms with POTS. MORE at the link in bio. #BethennyFrankel #POTS #Health #Condition