Keep an eye on her, stress can cause rabbits can go into statis.
From Dana M. Krempels, Ph.D.
http://www.bio.miami.edu/hare/ileus.html
'A rabbit's intestine can become static for a variety of reasons, including (1) stress, (2) dehydration, (3) pain from another underlying disorder or illness (such as gas, dental problems, infections, or urinary tract disorders) (4) an intestinal blockage or, (5) insufficient dietary crude fiber. Left untreated, the slowdown or complete cessation of normal intestinal movement (peristalsis) can result in a painful death, in a relatively short period of time. If your rabbit stops eating or producing feces for 12 hours or more, you should consider the condition an EMERGENCY. GET YOUR BUNNY TO A RABBIT-SAVVY VETERINARIAN IMMEDIATELY.
An intestinal slowdown can cause ingested hair and food to lodge anywhere along the GI tract, creating a potential blockage. Also, because the cecum is not emptying quickly enough, harmful bacteria such as Clostridium species (related to the ones that cause botulism and tetanus) can proliferate, their numbers overwhelming those of the normal, beneficial bacteria and fungi in the cecum. Once this overgrowth occurs, gas emitted by the bacteria can cause extreme pain. Some Clostridium species also produce potentially deadly toxins. It is the liver's job to detoxify these poisons, at a high cost to that all-important organ. Damage to the liver can be a serious--even life-threatening--side effect of GI stasis.'
I wouldn't worry too much as it's only been a few hours. Keep an eye on her and make sure she keeps eating, especially hay and if she hasn't pooped in 12 hours take her too a vet. Hope she is ok!