I hope Beowulf is ok. He's still very rambunctious, but he has barely touched his food and he hasn't used the litterbox. He has also been sneezing from time to time and his eyes have dirt near them.
It sure sounds like he has a URI. It's Sunday and all the local vets are closed, but we'll try making an appointment tomorrow. Bideawee, the place we adopted from, has a Manhattan branch and they have offered us free medical for 2 weeks.