Since we have made some insulin adjustments after M's last endo visit her blood sugars have been great. Pretty much nothing over 150. Unless ironically you count the day of the JDRF walk when she was in the low 200's, but I chalk that up to excitement.
Then on Friday M got her Flu shot. Went to bed with a reading of 134. Woke up Saturday morning at 198. What! She is consistently under 100 in the morning. Then at lunch somewhere in the mid 200's. (She has her meter with her at dance tonight so I can't check the actual number.) We corrected and went on. At dinner time a whopping 372! She ran in the upper 200's the rest of the night. Sunday morning she woke up with a low of 66. What was up with Saturday? The only thing I can think of is the Flu shot. I researched it and most of what I found said the the flu shot will not affect blood sugars. But then again YDMV (your diabetes may vary.)