I was diagnosed a year ago, and have got my waking levels down to between 5 and 6.2, so I thought I was doing o.k. Last week, I was told Boots were having problems getting Metformin SR, and they couldn't fill my prescription. I went to a different pharmacy, and got them straight away. I started the new pack on Saturday, and my levels have shot up to between 7.5 and 8.2, which was were they were before I started taking the Metformin! Does where you get the pills make a difference. I have done the same old, same old thing this week as last, with no major shift in my diet, so I am stuck for an explanation. Any ideas, anyone? Thanks,Ripelda