I have been type 2 for a long time and never in great control. My oral meds have gone up and up over the years. My numbers where so bad in December that my meds got upped again to the maximum amount of three different drugs. My next step was insulin. That was the kick in the a** that I needed and I started seriously dieting January 14th. I have lost a total of 42 pounds so far and have had several low blood sugar episodes. Went in for bloodwork after 10 weeks of dieting and my numbers are nearly perfect. Given the low bs episodes the Dr. reduced one of my meds from 4 a day to 3 a day. Since then I have taken myself down to 2 a day, still trying to avoid low blood sugar and my numbers seem to be holding within the acceptable ranges.
My point is, keep eating right and losing pounds. You body has a great chance to start working better. As soon as it believes your weight loss is for real it may get comfortable with the situation and start behaving better

You may be able to tolerate that bread in 20 more pounds. This weekend my period and hormones got the better of me and I ate 352 calories of chocolate. My blood sugar 2 hours later was fine. My body
at 200 POUNDS handled chocolate! Imagine what it will do at 150, or 130....
So give yourself some some time and a new weight loss and/or exercise goal and when you reach it try the bread again.
Blessings........................