There are so many things that may have thrown him off track, but the diet at least has been pretty steady with the syringe feeding. He is still getting antibiotic for pneumonia, and hopefully that is working. His heart rhythm has been more irregular the past few days, and we are wondering whether the heart medication is helping. He doesn't seem distressed, but he is not very active these days. He has required Miralax from time to time, but that does work like it should. He goes to the vet later this week. Might try the 2.75 until he's checked unless it gets worse. Thanks.