my dad is 69.for the last 8 years he has enlarging and shrinking feeling in the head.all tests including MRI brain were normal.He is better on lying down and doing some work.he has tremors in hand and jaw.he was an asthma patient.he feels pain and discomfort in the head also.is sleeping well.no cure for medicines like clonazepam and antidepressants.kindly help.