I have had the same quick onset problems for the last 5 years and have many tests with no conclusive diagnosis. Frustrating. Headaches, dizziness, weakness, aching arms and intense itching of my hands. I feel like I have the flu constantly. If I look up I am very dizzy and weak.Spacey, fatigued. my daily life is affected, and I am very limited. Not a very good quality of life.