I have chronic arthritis and migraines. Lately, I have been getting tingling in my left outer thigh, sometimes tingling in left shoulder and on my head. I am very fatigue and forgetful. I have been loosing my balance but not too bad. I exercise at least 4-5 times a week. I have been tested for lupus, diabetes, and ct scan on brain for tumors, bleed and clot. And all is clear