Unusual for "Type 1" to just emerge, at this point in your life probably.
Don't know about Pancreatic Cancer but I'd guess that's doubtful too, just because you have some high Blood Sugar numbers, and by now, you've probably determined that your A1c is at a bad point too!
My guess (based on how I felt when I radically altered my diet and added a bunch of activity) is your body is just adjusting (making you weak) to the new regiment.
Keep the faith, and wait until your treating physician gives you the real story.
I'm guessing, based on your co-operation to the program, you will soon see some results, in a positive way.
Good luck!
Jabr800