I have right sided diverticulosis, good advice about joining the support group. I was also told the information about seeds and pips us outdated.
I sometimes eat badly, for example rushed lunches at work, comfort foods and eating it too quickly, this causes me sometimes to flare up. I am trying to ensure I dont rush my food, and that I eat more healthily.
Stress and anxiety also bring it on, so I am trying not to get too anxious about things.
Just be sensible about your eating, and as advised by my consultant, drink plenty of water.
Glad it was nothing sinister.