On Friday I woke up with a reading of 128. Took my Lantus as usual, 25U, on top of my usual 15U the night before. Took shower, got Dunkin Donuts and brought it home. On way home I became aweare of being low. Very low,....took a reading,....22! Inside of 40 minutes I went from 128 to 22, and only took Lantus in between. And now for the last few days I have been running higher than normal, but with the feeling of being low. So I am taking my readings all the time. But all the usual low stuff,...cold hands, pressure on chest, eyes feeling not right, anxiousness all present, but readings in the upper 100's-mid 200's. Any one ever have this? Did my Lantus go bad? Could that be doing this?