Thanks, he has his yearly vet check in Mid-September. I will run some bloodwork to see where his organ functions are at provided I can get a sample :/
His vet usually tries to get bloodwork without sedation if we can get away with it and if we can hit a vein.
Until then I'll back him down to rats between 30-50g, space out his feedings a bit more, and get him out and moving on a more regular schedule.