My husband was diagnosed with Parkinson’s disease at 64. We see the symptoms of the hand trimmers in the afternoon and he falls from time to time and he has a hard time sleeping and vivid dreams, but my question is he is already showing the signs of lack of impulse control with his anger, yelling getting mad at a drop off a dime, etc., forgetting things or asking a question several times with the impulse control is this going to get worse?