New snake mom

[Klim]

I just got my first snake just over 2 months ago, apricot pueblan milk snake, he was a little baby. He has grown so much in such a short time. My worry is, when I first got him he ate 1 pinky, then 2, 3 and got up to 4 at a time and eating like a champ, then the last time he ate was 2-5-17 and only ate 2 pinkies. He is already on his 3rd shed but his belly didn't come off and is slowly flaking off. Temps and humidity are all in range. I'm just worried about him not eating.

Does anyone have any suggestions. I know he can go a little while without eating. he doesn't look like he is getting skinny or even lethargic. Man that guy is fast! Thank you all!!