I feel well in myself but my normally well behaved bm control decided to be stubbornly high since last night. I changed my cannula and used a fresh insulin vial around lunch time. I also increased my basal rate by 15% as recommended when sick. I over corrected lot of times yet my bm drops to 13.9 before it goes back up further. I don't feel ill except now I'm a bit tried but I believe that is caused by the high sugar and possible dehydration (I'm urinating a lot). I stupidly, got keton meter but no keton test strips for it. And some test strips for a broken machine. So I can't test for thoes. What can cause high readings that are not normal for me? That are not illness as I don't feel sick? Also I have given myself so much insulin already that is making me feel a bit apprehensive about taking further insulin. I don't want the insulin to take effect at the same time dropping me very low. Or is that just a random fear. Can anyone point to me materials to read about how to calculate insulin corrections correctly.