my papa, is feeling weekness , age 65 ,stop to take food,, unable to identyfi reletive quickly. before 2 days he was looking towards calendar & murmuring something. he can t sleep long time. after 30 to 45 minute he gets up in bed . & seat on bed for long time. not watching up . keeping head down only. not talking much more by himself. to whom I counsult first? a phycian or a syctric? cough is also too much