Graves' Disease increases the production of thyroid hormone which controls metabolism. Symptoms include nervousness, heat intolerance, diarrhea, sweating, insomnia, and weight loss with increased appetite. MayoclinicWebMD
Gullain-Barre syndrome affects the body's immune system attacking the nervous system and causing a neuromuscular disease with initial symptoms of weakness and tingling starting in legs and rapid progression to paralysis in legs, arms, face and breathing muscles. The NINDS, Guillain-Barre Information Sheet