Failed Feed! Help PLZ!!!

So about an hour and a half ago my BP struck and coiled his first small rat, and then he drug it back into his hide and attempted to eat it. It all seemed fine and dandy until about an hour and a half later he started rolling around like a crocodile would after it latches onto something, and he flung himself out of his hide. He failed to figure out how to properly eat the larger prey and I knew something was going very wrong, so I removed the small rat (50 gms) from the tank, and now I am waiting to see what I should do. I'm worried that he might be injured or get overly stressed and something bad might happen. Do I need to take him to a vet? I'm worried he might die or something... This hasn't happened in the 12 years I've had snakes... He's acting delusional and stuff.

Had he started to consume the rat, never start? Maybe he regurged? How big is he?

Can you provide more details? Can you describe what you mean by 'delusional'?
How large is your snake? Is it a spider morph corkscrewing?
If not, I don't think you have anything to worry about. My balls(typically the hatchlings) roll around sometimes when trying to adjust their hold or position when feeding. And I've seen the "flinging' thing as well when my balls suddenly pull the prey backwards or what not. It may look awkward, but its normal.
I have a large male who doesn't eat as fast as my others. He kills rats fine, but always looks like he doesn't know how to eat it. I always think he forgets to dislocate his jaws or something. But in the end, he always gets his food down with time.

How old is this snake, how big is he, and what was he feeding on before this attempt with the rat?