I wondered if you were in the same boat with the diet restrictions you mentioned. Guess birds of a feather really do flock together, right? From what I've read, most people will come up with it as they age. Another little goodie for getting older, lol. I wonder about the tendency to pass it on...my Dad had it, his mother had it and my brother has it.
It's not inherited, it's a result of the American diet we grew up on. Divertculi are little hernias in the colon wall, weak pouches that can abscess and OMG blow out.
Now doesn't that help with our appetite..