Yesterday I had several episodes of brief dizziness when going to a standing position from a sit down lasting approx. 10 second. Today some of the same (But not as concerning as yesterday). I take 25 mg. hydrochlorothiazide, 40 mg lisinopril, 40 mg. atorvastatin and 20 mg omeprazole. I have lost several lbs over the last few months ( but I 223 lbs., in December 2015, now 206 lbs.) I associate that to better eating habits and walking approx. 45 -60 minutes 4 x s a week. By definition, I am a borderline diebetic (No meds, just exercise and diet). What do you think? Thank you, Dan