hi all !
Sorry for late reply, as I only go through the BB on saturdays only, so it take a week to read all the messages.
First, reply to hanadr, well I found that puzzling to go into hypos after taking metformin, because my doctor also told me that metformin does not causes hypos, but they work by regulating the sugar levels in the blood, so they were bleaching my sugar levels as soon as I finished any meals and 2 hours later, sure enough i would feel sleepy and dozy and as soon as i check sugar levels it would come in at 3.9, very low by my body standards, although for a full blown hypos you have to be in the region of 2.5 mmol or there abouts, i only found out by accident, as i went for a swim and i was feeling dozy, so i checked my sugar level it turned out to be 3.5, so i treated myself to a mars bar, and after eating mars i really perked up and was able to swim for half an hour without feeling tired or exhausted.
reply to broads,
it is not how far you walk but how vigorously you walk, in my case i walked for 20 minutes daily on tread mill taking my heart beat to at least 140 beats per minute, of course you have to built your stamina and it would be dangerous to raise your heart beat substantially through excercise if you do not normally do it.