question: MY SON HAS BEEN FEELING LIGHTHEADED AND A BIT DIZZY FOR SEVERAL MONTHS. HE PLAYS COLLEGE BASKETBALL AND DURING PRACTICE/GAMES IS WHEN IT USUSALLY HAPPENS. HE HAS HAD BLOOD WORK DONE AND BEEN TO 2 DIFFERENT DOCTORS. THEY TOLD HIM TO EAT AND DRINK MORE. HE HAS BUT IT HASN T HELPED. ANY IDEAS?