Hi @trishplace, ugh, I’m so sorry you’re having this experience. I can empathize a little because when we travel and my schedule is thrown off, it can take me some time to, let’s say, have all my “friends jump into the pool at one time.” I’ve found something that really has helped and now I no longer suffer from the stragglers that come randomly during the day.
(All that volume down there can also put pressure on your bladder, potentially causing the urgency…again, I have this happen occasionally)
I use a half or 1 packet of Metamucil in water (once per day) for a day or so. That seems to close up the gap between “friends” and they move along in one cohesive group. It restores the peristalsic movement of the gut. It’s very gentle and doesn’t bulk up like other fiber. It holds water and helps hold the poo altogether so it moves along cohesively. The poo is looser but keeps all the little bits and pieces together so they don’t collect in the diverticula pockets.

The problem with just adding more random fiber is that it’s inconsistent in our guts and can cause gas pockets and breaks in the peristaltic movement. It actually has a name - Segmentation. I did a quick search and sure enough, I found an article you might appreciate that explains what happens.
https://my.clevelandclinic.org/health/body/22892-peristalsis
Metamucil is an over the counter product and very common. It’s generally prescribed for anyone with gut issues. It also fills the bill of the fiber being recommend for you but it doesn’t cause bloating. Use a half packet to start. I really hope it helps you. My daughter has my same issue when she travels and it also works for her.
Have you tried Metamucil?