Was having very poor blood readings last year( hba1c 9.7) and my nurse uped my Glicklazide to 160mg twice a day in early December. This appeared not to be having any effect when I saw her early this month (I was having readings in the late teens on a regular basis) so I am being put on injections. In he last four days my blood readings have suddenly dropped to really good levels and I'm a bit confused to say the least. Any thoughts ?