No, warming it doesn't help the effectiveness. Just helps minimize the sting. When you say your insulin isn't working I'm wondering if you are keeping a food, med, exercise log. Sometimes we think we're doing just great and then when we start writing it down find that there have been a few extras added in... That's usually the case for me. My meds work great when I'm sticking to my food plan and doing my swimming.
Stress can also goof up your sugars. Has there been anything you can see that might be adding to your overall stress load? If so, can you get a little more exercise to lower the stress response? This won't remove the problem but it will help your outlook. Wish I could be more helpful.
My body is a quick responder to correct eating and exercise along with a boost from the meds. I really sympathize with type2's who have difficulty with control. Obviously there is more to this disease than just following a food plan and taking meds. It's hard to solve the puzzle when modern science doesn't have all the pieces. At least if you keep a log you might be able to spot some of your problem spots.
~ Jeannie, Forum Moderator/Diabetes & Fibromyalgia
I know God will not give me anything I can't handle. I just wish that He didn't trust me so much. ~Mother Teresa
"People are like stained glass windows: They sparkle and shine when the sun's out, but when the darkness sets in, their true beauty is revealed only if there is light within."- Elizabeth Kubler-Ross