i’ve had my ball for about four years, he was born May ‘17. He’s been a pretty good eater & ive never had any major issues from him. Recently i’ve noticed that he’s relatively skinny for his length & age. He’s 660 grams & about 4 foot long. I’ve taken him to the vet a few times for regular checkups & he’s always came back perfectly healthy. His spine is not showing, there’s no loose skin, he eats a small rat once every 10-12 days, etc. My question is, is it okay that my 4 almost 5 year old is so small? The vet is even stunned that he is so healthy, such a good eater, and yet is still only 660grams. TIA❤️