Several days without defecation is not comfortable but quite easily achievable.

Couple days? Sure. 5 days?

Happens to me every time I go camping. Not through deliberate choice or anything. I just... don't go.

Most convenient psychosomatic issue ever. Though it's a little rough on day 5.

I imagine that if I went camping, and didn't eat anything, Camping Mode would last longer.

I was about to give this same example. I'm sure I've gone almost a week while camping in the past.

This is also the example I had in mind but didn't want to write. Going on an adventure always stops my system.

It seems that my body takes the "leave no trace" principle very seriously.

Once I get home, it goes back to its normal schedule.

This happens on outdoor adventures, but also on long car trips to museums, etc.

You're not toxic shocking your gut with alcohol?

I don't know, maybe. But this mode activates every time I leave my house for extended periods. Whether or not I'm drinking. I call it "Camping Mode", but it also happens on vacations and business trips.

Being constipated for 5 days is not particularly unusual, especially for people who've just undergone a major surgery