Older Men With Low Testosterone Face Greater Depression Risk (HealthDay) (Yahoo
HealthDay - THURSDAY, March 6 (HealthDay News) -- Low testosterone levels in older men are associated with an increased risk of depression, an Australian study says.

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(From Yahoo Diseases)

http://www.nimh.nih.gov/health/topics/depression/men-and-depression/signs-and-symptoms-of-depression/index.shtml

Signs and Symptoms of Depression

Not everyone who is depressed experiences every symptom. Some people experience only a few symptoms; some people suffer many. The severity of symptoms varies among individuals and also over time. To read about the symptoms of depression and to hear what real men say about their experiences with them, click through the list below:

• Persistent sad, anxious, or "empty" mood
• Feelings of hopelessness, pessimism
• Feelings of guilt, worthlessness, helplessness
• Loss of interest or pleasure in hobbies and activities
• Decreased energy, fatigue, being "slowed down"
• Difficulty concentrating, remembering, making decisions
• Difficulty sleeping, early-morning awakening, or oversleeping
• Appetite and/or weight changes
• Thoughts of death or suicide; suicide attempts
• Restlessness, irritability
• Persistent physical symptoms

Thank you, Curious.

I had a feeling it maybe depression. This does run in his family. Two of his younger brothers are on some kind of SSRI, and my sisters were kind enough to have inherit this trait. I've been luckily spared although the PD has gotten me down.

Now to get him to a doctor... That's a whole new bag of worms, I mean more like snakes to deal with.

Your dad has dementia, or something close to it. I' sorry to say this and i'm putting myself out on a limb saying this, but from what you have described, there leaves little doubt of the outcome.
A PWP who does not have dementia does not have such a significant personality change such as you've described. If your mom feels the way she does after so many years of marrriage, then he does have a problem.
Best to get him some professional help. This will avoid both him turning violently on you or you marginalizing him because of his anti-social behavior. This is one of the BIG usually suppressed problems with PWP; especially the elderly. There is no excuse for your father to treat you and your family this way, but remember he doesn't mean it; he just doesn't know what is happpening to him. Don't sweep this under the carpet, it will only get worse. With time and counseling, there is a chance that he may learn that his behavior is wrong and he may be able to put a lid on it, for all of your sakes.
I am sorry to hear that he has turned this way on your family. It is very diffiicult to deal with and a burden on ALL of you.

Thank you CS. I will try my best to get him some professional help. He doesn't have Parkinson's, but has been exposed to Tolulene and other chemicals in the past. He was a graphic artist and used those smelly markers to do layouts with. I wonder if this has anything to do with his problem now.

At any rate, we as a family will have to work on this together. We love him dearly, and as an elder he has our respect too so we have to do this as tactfully possible. This is indeed frustrating for my mom as she never thought things would come to this level. They were pretty close emotionally up until recently, and I think this has had a lot to do with that.

John