This type of problem is called autonomic neuropathy. Doctors have been studying this problem for many years, but they do not yet understand how diabetes damages the nervous system. However, they have observed that good control of blood sugar levels helps prevent diabetic neuropathy. There is no treatment for neuropathy. The best approach is to control the diabetes.
Muscle weakness is treated with support, such as splints.
Pain-killing drugs or cream applied to the skin may help pain during the night. Medications can be used to treat nausea, vomiting, and diarrhea. If you have neuropathy, it is especially important to try to prevent injuries such as burns, cuts, or broken bones. Neuropathy worsens other diabetes-related complications. For example, if you have lost feeling in your feet and legs, you may not know you have an injury or infection until it develops into a bad sore.