Well, it cost over $400 but I figured out which cat was sick. Buddy was the poor kitty. He has also lost some weight so he may have been sick for awhile. He is on antibiotics now so he should be feeling better soon.
M has had a really bad cold the past few days. This morning and last night it appeared to be turning into a sinus infection. I will take him to the doctor this afternoon. My doctor count so far this week is three cats and one kid. Two will most likely be on antibiotics by the time the week is over. We had been on a really good streak with over two months without any doctor visits for M and a month without anyone (pets or people) on antibiotics. Hopefully, we can get through the rest of winter without anymore emergency trips to the doctor or vet.