Suggest Cure For Fatigue In The Arms & Legs

Hi, may I answer your health queries right now ? Please type your query here...Six months ago I had bouts of lightheadedness. I had an MRI of the brain, several blood tests (thyroid, liver, kidneys, etc), a hearing test, and a consult with an ENT. Nothing was abnormal. Now, I have some on and off tingling and fatigue in both arms and sometimes my legs. My primary doctor really doesn't think it is anything to worry about and assures me that it doesn't fit the criteria for any of the things he would know to check for. I have full strength in my arms, just this weird type of fatigue and rubbery feeling. Any ideas?