Have any of your heard about or experienced this. My doctor seemed to think that I had this but it turns out I have colitis. How is this diagnosed and how is it different from colitis? I am also experiencing severe leg and foot cramps in the night that leaves my muscles sore for days. Could this be a side effect of Lantus (low potassium) that I have used for the past 8 years? I need your knowledge and experience. I have been Type 1 for more than 35 years. Thanks.View Thread