Symptoms such as fatigue, headaches, joint pain and bone , sweating in the tips of the fingers and feet , sleeplessness , tingling and numbness and weakness in the legs. Standings negative for lupus, POSITIVE TERMS in nerve damage.

Your symptoms and medical history suggest an autoimmune disorder. Although blood tests have been negative they are not the only parameters to establish a diagnosis. Your history and clinical signs are important to make a serological studies . An assessment would be recommended rheumatic and help ( I presume it is already done ) . Maybe they should take a different approach , for example, celiac disease . Celiac disease can affect various organs such as the intestines , joints, skin , nerves and endocrine or reproductive system . Unless you are totally excluded or discarded celiac disease diagnosis can avoid for months or even years. Check with your doctor .