P.O.T.S. - Postural orthostatic tachycardia syndrome. BP plummets when he's upright, rEverts to normal when he's lying down.
Fainted.
[SEP] Fainted. [SEP] P.O.T.S. - Postural orthostatic tachycardia syndrome. BP plummets when he's upright, rEverts to normal when he's lying down.