my doctor said I should not take ibuprofen. It wouldn't mess with your blood sugar readings, but it could cause serious problems with kidneys and other organs, and since you're already at a high risk for these problems, I'd stay away from it.
You have two different orders, from two different doctors? I might even bring in a third doctor in this situation, just to get another opinion. Maybe one of your doctors is a quack.
My doctor perscribed me a low dose of aspirin, which doesn't interact with my other meds and is actually supposed to protect you from heart problems, so I'm sure that would be ocay to take. I'd ask your doctor about that before starting it though.