Super-rapid digestion

This would be TMI in any other forum but I'm assuming it's OK -- even necessary -- here. :)

I've had IBS symptoms for years now, but have lately noticed that I'm eating food, and only a few hours later it's coming out the other end, often as diarrhea. My diarrhea is extra bad right now because of side effects from a pill I took, but this isn't atypical for me.

Had carrots for lunch at 1:00 today. They departed my system starting around 4:00. Same thing happens with salad.

I've read that the digestion process should take 24-72 hours, so I'm wondering what's wrong with me and whether I should be concerned about not getting proper nutrients.

This is something I mentioned to the nurse practitioner I saw the other day and she didn't seem concerned -- seemed to think it was part of the symptoms that have been diagnosed as anxiety. I know anxiety and IBS can be related.

But three hours -- really?

I've tried gluten free and have tested negative for Celiac. Had an acute episode of colitis but other colonoscopies haven't revealed anything unusual.

Anybody else here pass stuff as rapidly as that? Should I bring it up more forcefully with my medical provider?

Yes I have that problem. Have taken a lot of meds to slow down my digestion. You have to make your Dr. listen to you or get another one that will. And mine is just IBS. When I worked I could not eat till got home from work because could not make it to the bathroom and had a lot of accidents. I have had IBS for over 30 years and have did every test in the book to see what was causing it, and still do not have a clue. Eight years ago I had a bacteria that made it so bad I lost 40 lbs in a short time and can be dangerous so make your Dr. listen to you.

This happened to me when I was newly pregnant. I would see bits of lettuce or something in my stool. So bizarre! But it self corrected. I was super stressed at that time also.