I might have had a similiar experience and I don't know that diet alone would help, but it might. I had kidney surgery, and my PCP says I have "reactive scars," meaning that the nerves are more sensitive to touch/temperature. I also learned from my pelvic PT that scar tissue doesn't have much discretion, it can build up and build up and build up and attach itself to other tissues, and that can cause some restrictions and reactivity. It can even contribute to slowed motility or SIBO (small intestinal bacterial overgrowth), which can also cause bloating/distention.

I saw a pelvic physical therapist for help. It's something a regular PT might be aware of, and I'm not sure if you're familiar (I wasn't!), but pelvic PTs (sometimes referred to as "Women's Health PTs," but that's a misnomer because almost all of them treat both men and women) are specialists in abdominal pain (including abdominal surgeries), disorders of the pelvis (which can include abdominal pain, bloating, low back pain, bowel/bladder, and hip issues) and have the "regular" PT experience.

I've had two surgeries: The first, an open spinal fusion and a bone graft across my sacrum/pelvis to help graft the fusion, and second year's later, a kidney removed. The kidney surgery was a laparoscopic surgery, but there are 5 small incisions from the ports and one larger incision about 6 inches long below my belly where they removed the kidney.

I started having abdominal pain and distention over 10 years after the kidney surgery and was sent to GI, but everything screened normal, so I got diagnosed with "functional dyspepsia," which is basically like the upper GI version of IBS (so no bowel issues, mostly stomach pain and distention and difficulty eating).

The thing is that bloating and distention can be caused by a bunch of different things. Like with most things, they always say it's important to figure out the cause, but it can be almost impossible with things like this, which is annoying. I found the book "The Bloated Belly Whisperer" (corny name, but it's by a GI dietician), which helped me narrow things down. You could consider seeing a gastroenterologist, but that could take a really long time...

I worked with a GI dietician, and she was able to help me with some adjustments to help somewhat minimize the bloating and distention, but restrictive diets really didn't help me and only made me more susceptible to disordered thoughts about eating. But she did have some good ideas I still implement, like eating smaller meals and choosing things that are easier to digest.

But working with the pelvic PT helped the most because she was able to identify where my scars were more reactive and where the tissue was thickened and also teach me scar desensitization techniques and an abdominal massage I could do on my own to help with motility. This is just one of the first pages that came up when I Googled, but she taught me some things like this: https://myhealth.alberta.ca/breast-cancer-surgery/at-home/scar-massage

You may need to try to determine if what you're feeling is more physiological (like if it's the scar tissue) or biological (i.e. SIBO) or both. For me, it was both.

Hope that helps at least a little!