Yes my Aunt was like that. It just got worse over time and finally she had to go to memory care.
Maybe he isn’t being treated for Parkinson’s.
LEWEY BODY DEMENTIA
Stiff hands, or muscle rigidity, can be a symptom of Lewy body dementia (LBD), which is a brain condition that can cause Parkinson’s disease-like symptoms. Other movement symptoms of LBD include:
Slow movement
Shuffling walk
Frozen stance
Tremors or shaking, especially while resting
Balance problems and repeated falls
Stooped posture
Loss of coordination
Smaller handwriting
Reduced facial expression
Difficulty swallowing