How Can Head And Back Pain With Confusion Be Treated?

hi doctor,i was really sick 3 years a go,in winter,had verry strong pain in back of my head,and strong pain in my back,was just about to move,and was really a lot perspiration,or heat in my legs too,for about a few weeks,i was thinking thats gona be it,but somehow i survive,just now left the same in back of my head problems,and comfusion,cannot concentrate,ignoring friend,left my job,done mri scan,but they say you ok,i dont believe it i fell i am going crazy,what to do doctor,maybe you can help