u/Green_Plantain_5891

my kitten was found abandoned in a bush at 5 weeks old.
he’s always struggled to gain weight, i’ve had him since he was over a month old.
when i got him he was barely over a pound.
he’s now 2.5 pounds and he’s barely grown.
he’s going to the vet friday for an ultrasound, all his baby teeth have not fallen out yet.
but was wondering if maybe my cat is a runt or dwarf cat?
here’s a picture of him next to my full grown cats.