Indianajones - 9/21/2023 09:16

With my melanoma chemo treatment, one of the major side effects of it is it made me extremely diabetic. Been treating it for a year with metformin and keeping it somewhat in check, but here at the end of chemo, the treatment is overwhelming the meds.
What I don't understand is the fluctuation in sugar numbers and how it correlates to diet and meds.
yesterday I went for PET scan and my numbers have to be under 200 to get it. Being concerned I started taking an extra metformin on Saturday and watching my diet closer. My numbers yesterday morning was 157 before I went to the test. I ate nothing at all and didn't take my treatment meds and when I got there, my number was 193.
After the treatment I had some stuff to do and ate a burger for lunch, has an ice cream cone heading home. For supper I has a sandwich with chips, and some concoction my son made with eggs and pancake batter. My sugar this morning was 153.
Couple weeks ago, I ate nothing but protein for 4 days and my blood sugar stayed near 200. Ate everything I shouldn't of and it dropped to 160s.
I pray when the treatments are over in a few days my sugar gets back to a more normal range with the metformin but cannot under stand why there is no reasoning to how the numbers work.
INDY