<<Disclaimer: Verify this information before applying it to your situation.>> Lynn,, Yes, there is not a lot of traffic on this list. ...I have a son who has both, too. Some of my thoughts about your exchange student's blood sugar levels: her diet might be the same, but how is her activity level? Has it changed a lot as well? I would think also that being in a different environment, with different stresses might also affect her sugar levels. Stress, whether positive or negative, can affect blood sugar levels. My son eats the same for the most part as his non diabetic but celiac brother, except he cannot just eat when he wants to, and has to keep track of what he eats, and I do not let him have an unlimited supply of candy and other sweets. Also, does she ever test herself in the night to see how her levels are doing, in case she is going low and "rebounding" ( where her body kicks in some hormones to raise the blood sugar level)?I hope this helps some. Good luck, ;and where is Isabel from? Mary, in Kansas [log in to unmask]