high blood pressure
"I started taking hydrochlorothiazide about 18 months ago.  My blood pressure was never very high - about 125/95.  It lowered it to 115/85 but my blood sugar jumped to 450 (I was not diabetic below taking HTCZ).  My A1C was 9.6.  I went off the HTCZ and my blood glucose went to 97 within a week.  I also reduced my diabetic medications from 5 pills a day to 2."