Hey there...
I know how frustrating this can be, just when you have everything down right, the Blood Sugars get so good decide to change (LOL)

. I don't know how hot it is where you are, but I know that when it gets real hot where I am, my BS act real weird for NO reason.
Are you able to talk to your doctor?
I hope you were talking about units..
"just last month I used to take 8 shots of levemir". The point AM1977 made about your insulin going flat is a good one and you might want to check that out too.
Diabetes is WONDERFUL!-----NOT! and everyday our metabolism changes causing the want for change and thats what causes our frustrations... Please keep us posted on your levels and what you were able to find out. Good luck!