Have to remember, by definition, hallucinations are false sensory input, as opposed to delusions which are fixed false beliefs.
I have both visual and auditory hallucinations, have had for 4-5 years. I key off my dog and wife (and other people if they're around)--if they are not reacting I know it's me. I find my visual hallucinations amusing; nothing really scary or 'ghostly'; because I know they're not real. Usually a small animal or shadow moving rapidly, or a person. Once I had Tweedle Dum (or Dee, not sure which) from Disneys Alice in Wonderland sitting on my leg, full size, looking at me and grinning; I swatted him with my arm and he disappeared. Another was a boy, about 12 years old, dressed like Colonel Sanders, standing against a wall. He was very solid and didn't move. Problem was there was another wall between me and him My first real experience was the gradual materialization over several days of a Revolutionary War soldier, green pants, blue coat, ruffled shirt, white wig and stockings, no face or feet. Last time I saw him he was standing behind my doctor who was sitting at his desk. I've also had people looking over my shoulder or walk by when Im doing something.
Auditory are a nuisance, especially when they wake me up in the middle of the night. Usually like talk radio, with one man interviewing another man or woman, sometimes all three talking, once in awhile they argue and sometimes there is also music. Sometimes, however, there are whispers or sounds in my ear (no command prompts) while Im doing something. As I said, a nuisance.
At times I have very vivid dreams while in REM sleep. Sometimes I can tell myself, as though an observer, its a dream and it stops. Sometimes that doesn't work, I wake up and the dream continues for a few moments after I wake up. That can get scary, because I dont know what is real and what isn't. So far I haven't had to fight any monsters after waking, but who knows; it may be just a matter of time.

My husband has been having those lucid dreams for years,He was not diagnosed but it definetly was a warning sign for me.He was on no medications. Vivid dreams are often a precursor to PD. Saw Alan Alda on tv talking about his dreams and hitting his wife during sleep. He was diagnosed with PD when he saw his DR.

It's hard to say if the meds make the hallucinations appear or if is the disease or if the two working together cause the problem. I have had 7 major operations and don't think the meds cause me any problems. That being said if, I take a small nap durning the day my wife says that I act strange for a few minutes. Is this caused by the meds or the disease ...don't think anyone really knows. Thats my opinion......PS if you can make your brain realize what your seeing is a hallucination hopefully you can rid yourself of any problems.

I have had PD for about 5 years. I was also diagnosed with REM sleep disorder which makes me act out my dreams, most of the time with bad results. I have kicked the dog off the bed, hit my wife and thrown myself out of bed dreaming I was going to be run over.

For constipation my neurologist nurse recommended to me100mil of prune juice every morning before eating, it worked immensely, l used to go to s massure once a month which really helped me, plus exercising was a great treatment for fighting p.d.
Donna l fully support your input in fighting this blasted disease from Bernie of Australia