I have not found a cause or solution but laughter has helped me to deal with the embarrassment.

No. I don't have this problem. But in a way I'm not surprised because I do notice a lack of muscle control throughout my lower abdomen and body. It is very difficult to pull my tummy in, for instance. I think you ought to ask your neurologist about this prob, though. Maybe be/she will have a suggestion.

This is what I found on the internet. I could never find a relationship between flatulence and PD.

Common causes of gas and bloating:

Is Your Diet High in Fiber?
Eating fibrous foods like beans, cabbage, and cauliflower can produce more gas because of your gut bacteria’s inability to fully digest them. If you’re prone to gas, you may want to take a look at your overall fiber intake!1

No Time for a Sit-Down Meal?
Swallowing too much air is the #2 cause of gas and bloating – pun intended. Avoid eating too quickly, chewing gum, smoking, sucking on hard candy, or drinking through straws. Activities that lead to more instances of swallowing air can produce more gas as the air gets caught in your stomach.1

Do You Have Food Intolerances?
Some medical conditions don’t allow your body to properly process certain foods. For example, if someone is lactose intolerant, they can’t process the sugar in milk. This all-too-common condition can result in gas and bloating.1

Eating a Lot of Sugar and Fruits?
Complex carbohydrates like sugars, starches, and fatty foods are not easily digestible for many people. Fruits like bananas and apples can also generate a fair amount of gas, as they’re high in sugar. However, it’s important to eat a balanced diet of fruits and veggies, and your body will often adjust to these foods after a period of time.

I have gas to the mass. I fart in church when its quiet, at exercise class while doing arm raises with a rubber band, the best one was during a Christmas holiday b4 COVID. I was standing at a dollar store talking to my friend when i let one so loud and so long and all I could do was stand still and pray no one heard me. Jean(m friend,) said that should of seen this mans face. I was mortified. So funny now. Sorry I think because another is where i"m at I can vent hope it brought a smile. No I've tried Menamucil, helped for awhile but notice still gas, Not as bad But still embarrassing, I'm really constipated also. Take stool softeners alot of stool softeners every day. Still have trouble. My dr. is no help, I really don't think people want to be around me. Causes me trouble there also.
This is probably TMI But gas hell They don't stink (my neighbor and I argue about this) He says I need my nose checked,too. :) I'm in complete denial about this too. but are too loud. I'm my mother . she used to take steps and fart every step. Mom's revenge. Keep smiling practice the look where you look innocent, it works , well sometimes. Hugs Rosie🙄

My stomach muscles were cut straight down from breast bone to pubic bone from a car wreck. I feel the urge I need to a bathroom .