Brandi is still not regular, at a loss

Spoke with her vet Thursday and again yesterday. If by tomorrow nothing changes he wants to refer her to a specialist for intestinal issues
I've stopped the rice since she's been on/off for over a month (too much carb) = weak, vet agreed
I'll finish up her meds & florifora and I'm cooking for her. I'll be putting on the Senior Orijen but must wait for now. I've prepared for the week fish, chicken, beef, potatoes, carrots and broccoli adding pumpkin. Vet suggested to feed her very small amounts every two hours
Breeze any update