Can anyone advise me please. I joined the gym last month and been going on a regular basis about 3 times a week. I am having real problems sorting out my bloods. I only need to be on a cross trainer or treadmill for about 10 to 15 minutes and I drop so dramatically. I cannot start exercising unless I am above 11 because within ten minutes I go down to about a 5. I have been reducing my basal to 50% one and a half hours prior to exercising. I end up having lucozade and dextrose continuously through the exercise and quite often have to stop! It really does seem pointless continuing with it if all if all I am doing is putting extra calories into my body. I need to lose a couple of stone and I feel really fed up and desperate now and any advise would be greatly appreciated.