Is it normal for a dog not to poop for a couple of days after taking anti diarrhea medication?

My dog got an upset stomach last Sunday, and ended up having very runny diarrhea (and some vomiting) for the next couple of days. She was at a point where she’d ask to go out every couple of hours to just kinda poop very liquid poop.

On Wednesday, after having put her on a chicken and rice diet and nothing getting better, I took her to the vet. They did bloodwork and an x-ray and said nothing looked abnormal on either (other than she was a bit gassy) and prescribed me proviable-forte.

I gave her the paste for the next couple of days (admittedly I missed a couple of dosages) and she immediately got better. In fact she hasn’t had diarrhea since the vet visit.

The thing is, I also don’t think I’ve seen her poop at all since then.

She’s kinda private, likes finding a bush to hid behind to do her business, so it’s possible that I’ve missed it. But it’s been a couple of days now and I’m getting worried.

Is it norma that the medicine might be throwing things out of whack for a little bit, or does this warrant another vet visit?

(She’s also currently dealing with an ear infection, if that’s at all relevant. The put something in her ears for that, she’s not takin any medication)