I had an issue with gabapentin increasing my issues with incontinence, but in my case, lacking a colon makes incontinence a critical issue as it leads to burns and inflammation and scarring.

If you are having any pain sypmtoms, you may want your doctor to check you for fissures. This can occur when your sphincter goes into spasms. Those spasms can contribute to incontinence.

Any time you experience this without a known cause it is wise to check with your physician. The fact that you have gastroparesis might be a clue. I would see a good gastroenterologist or colo-rectal doctor.