Should I Be Worried

[N8GotBalls]

I acquired a Male ball python in the fall, he grew up on frozen thawed. He was eating for me and now will not. He got up to around 375, 400 grams.

It has now been a month since he has eaten. No real intrest, when he crawl into the area of the rat, when he sees the rat he immediately escapes it's presence.

Any one have one go off feed at this size? Should I be worried. Others eagerly taking the rats that he won't. He had refused here and there in the past but nothing steady like this.