My elderly 8 year old lionshead rabbit has had some odd symptoms the last two days. He had large clumps of fecal material in his enclosure and on his hind legs yesterday. He did not make it to the litterbox at all. I cut back on the fresh vegetables and he primarily has his timothy hay mats (which he chews on) and the nuts/seeds/rabbit food mix he always has in his bowl. He ate this morning but did not produce any feces today - normal or otherwise. However, his bottom was wet and there was no urine in his litter pan. He had a urinary infection about a year ago which caused the wet bottom, so I wonder if that is the problem again. He still seems to have energy and does not seem obviously in any distress. Any thoughts.