My bunny and I have been bonding really well for the past month and a half. He's about 16-17 weeks old (about 3.5 months), not neutered yet. Yesterday, after I fed him a little carrot "skin" from a carrot that I was peeling for soup, he just started acting weird. As he was eating, his stomach was shaking like 2-3 times. Then he did this funny thing with his mouth where he opened it and closed it again and it kind of looked like he was choking for a second. It's the next morning and he's still eating and drinking hay, pellets, water, and carrot greens normally. However, he started pooping and peeing in the opposite corner of his litter box. He also seems super tense and skittish and runs into his hide house when I get closer. He backs his head away when I try to pet him too and won't really come out of his cage even though I leave it open when I'm home. He just seems super pissed about something and pooping and peeing all over his cage which he usually never ever does. Maybe I'm just a worry wart but something seems off...