Your fasting blood sugar of 159 mg/dL and frequent nighttime urination indicate that your diabetes is currently under-controlled. The body shivering is particularly important to address, as it could be a sign of an infection, which often causes blood sugar levels to spike. Please do not adjust your medication dose on your own. I recommend consulting your doctor promptly. They can evaluate the shivering, check for any underlying issues, and safely adjust your medicine dose or discuss alternative generic medications to better manage your symptoms. There is no need to panic, but a professional medical review is the safest next step.