Where are located (in general)? Here in the midst of tick country, lameness of any sort usually means something tick-borne. So maybe the lameness isn't related to the Palladia. Has Zeke been in brush or a wild area in the past few months?
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."