It is very important to monitor her eating. She should start eating and drinking again within a few hours of coming home. Entice her with her favorite foods. She needs to eat. If she refuses to eat, contact the vet.
Stress sometimes brings on a condition known as G.I. Stasis in which bunnies stop eating altogether.
A vet will help you know how to handle it if it happens. Check her incision site periodically for redness and swelling and any discharge. Be sure to contact the vet if you notice anything unusual. As she heals, your bunny will start to move a little more each day until she s back to normal. Even if there are no stitches to remove, your vet may still want to schedule a follow-up appointment to be certain everything is healing properly.