my boyfriend has pots syndrome but i haven't been able to find out why he has what i call a seizure? i don't understand. one minute he's fine and then the next he's having a seizure and he stops breathing and his eyes roll back in his head and he jerks around. in everything that i've read about pots sydrome, i've only read things about people passing out. my boyfriend doesn't just pass out and i'm worried. what is going on??