My husband has been getting worsening symtoms for over a year now. Have had blood tests, cat scan and no signs of tumors or strokes. All ok in blood work. But he shuffles like an old man, he gets dizzy if he looks up, his speech is garbled and he has to talk slow and put alot of effort into it so I can understand him. He also get mad easily. Going to see a neurologist but cant get in until nov. Is there anything we can test for before we go to the neurologist to make his diagnosis easier.??