Diagnosis
Stiff person syndrome can be diagnosed through the symptoms. Nevertheless, it is often misdiagnosed as other more common conditions, such as fibromyalgia, multiple sclerosis, or Parkinson’s disease. Some blood tests might be taken to verify the presence of anti-GAD antibodies or other forms related to cancer. Nevertheless, up to one-third of the cases report no associated cancers or antibodies. Your doctor might also need to carry out a hemoglobin A1C test to confirm diabetes. A thyroid-stimulating hormone test can check for thyroiditis. Another diagnostic option is muscle testing like EMG or electromyography, which helps measure muscular electrical activities. [6]
