My father’s mental health is deteriorating with no diagnosis. All test and scan come back normal. No nerve/muscle concern. Vocal cords move and close. All right concerns are right side – right side eye wider and little droopy mouth a little droopy right side. Voice is a whisper often stares, swallowing issues feels food gets stuck Neuro thought Parkinson but there are no tremors and a typical Parkinson doesn’t fit either. Levodopa was prescribed after 6 days he stopped with bad side effects He is now on a feeding tube and lost 50 lbs. Blood pressure is 127/65 no fever or chills. Any suggestions?