IM FEELING LIGHT HEADED FOR A FEW DAYS, CHECKED MY

IM FEELING LIGHT HEADED FOR A FEW DAYS, CHECKED MY BLOOD PRESURE, SEEMS OK FOR A 75 YEAR OLD DIABETIC, READINGS ARE 128/66/113. i HAVE A KIDNEY PROBLEM, AND TAKE MEDICATION FOR A HEART STENT I HAD PLACED IN 2008. CHECKED MY BLOOD SUGARS AND THE READINGS ARE HIGH AT 191, BUT JUST ATE AN APPLE AND A RIPE BANANA. IM OFF AND ON BLOOD SUGAR MEDICATION, WHEN IM ON I TAKE 25MG OF JANUVIA. MY AIC1 LAST READING WAS 4.3. THANKS