For the past five weeks I have been feeling as if I have a cloud in my head. I cannot concentrate, I easily forget things, i cannot remember words when i am having a conversation so I try to think of alternate words. The doctor said that I did not have a stroke...a brain MRI came back negative...blood test normal. I did have an ear ache for a couple of days a few weeks ago and I feel as if my ears are a little closed. Can this be ear related?