Our sweet girl bunny, Hera, has been acting unusual this afternoon/evening. She is alternating between sitting and lying in basically the same spot. She shifts roughly every minute, as if she can't get comfortable. She isn't loudly grinding her teeth or anything, except she'll do it for a couple seconds like once an hour. She is also totally lacking interest in food, hay, treats, and even fresh lettuce which is usually a favorite. Her bonded pal, Scout, is acting completely normal. About a month ago, we moved into a new apartment and they pretty much have the run, only in the rooms that are bunny-proofed. We supervise because they do try to chew on the wall trim and we try to avoid that since it is painted wood. They have lots of chew toys for alternatives. They are also allowed on our screened-in patio, but that is also bunny safe. We live in central Florida, so it is pretty fair weather right now and they love it outside but always have an open door to come inside. We are very concerned about our sweet Hera and aren't sure what else to watch for and at what point we need to make an emergency (or at least urgent) veterinary appointment. Please offer any advice you may have. Also, should we try feeding yogurt or anything else?