You know, I guess it's true what they say.

Dean was sleeping in the passenger seat of his Impala while Sam drove them half-way across the country onto a new lead.

He did look… angelic?

Not at all the snarky, devious, player that he was when awake.

Ignoring Dean's earlier attempts at pulling off and grabbing a room a couple of hours ago, Sam was driving instead of killing time staring at the cracked ceiling of another motel room.

Speeding past the cars in the other lanes they were making good time during the usual early morning rush hour.

It wasn't dull warning this time.

Hell, his mind always seemed to be dealing with a 'dull' feeling of pain constantly.

But it usually slowly escalated into a full fledge migraine, taking the steps into 'headache' first.

It was a sudden flash of white that felt like it wrapped itself around his left eyeball and looped around into his brain with excruciating pressure, resting behind the back of his temple.

Another struck his other eye and he had to blink rapidly to clear his vision of the wandering stars.

"Too quick… Shit! Not now, not when I'm behind a ton of metal… it's too fast… vision, shit, coming… Too quick, gotta- go to get off... I'm gonna kill someone driving… gotta pull off."

Sam's mind lurched forward as he felt like he was speeding through a tunnel at 200 mph.

Another flash behind both eyes and he tried to get out of the 'speed lane'.

He had to get to the side of the road as carefully as possible without crashing into anything or anyone.

Oh god it hurt.

This couldn't be a vision; it hurt so much worse…

Angry honks from passing cars vibrated through the car and landing in between his ears with extreme clarity.

It was pounding so hard, shaking his body with the noise.

Dean jumped slightly in his seat waking up and watching as his car stopped and accelerated trying to pass the four lanes onto the shoulder.

More honking as the Impala swerved too closely to an old Ford pickup.

Sam's mind was swirling. Cars were jumping lane to lane and the overhead traffic signs were falling to the sides of the road.

The green ones smashing into puddles as they impacted the ground.

"Sam. What's going on? What are you---" Dean was looking behind into the next lane as Sam tried and finally succeeded in parking on the shoulder.

With a lurch, Sam slammed the car into park and began struggling with his seat belt. It was choking him; the whole car was fucking choking him

Dean swiveled in his seat and tried to unlock Sam's seatbelt, but Sam was holding onto it tightly and began thrashing in his seat.

Sam was gulping in large mouthfuls of air as he began hyperventilating.

"Sam- Sam! Calm down!" Dean panicked and sliced the top of the seat belt off of Sam and the straps sagged into his lap.

"Breath Sam! Just- just take a deep breath!" Dean tried again as Sam still began breathing completely irregularly.

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Sam's breathing was coming through in large gasps as he stared at Dean in horror.

"I- I can't! I can- breath!" He gasped struggling in his seat.

Both of his hands were gripping the sides of his seat and his legs kept pushing off the interior near the peddles in a panicked frenzy.

Dean grabbed Sam by his shoulders to keep him still and got into his only line of vision.

"Sammy, try and relax, you can't breath because you're freaking out. Just calm down and it will be easier to breath!" Dean begged

Sam's face was turning red and tears were flowing rapidly down his cheeks as he tried to pay attention to his brother's far away voice.

His mouth was opening and closing rapidly trying to get words out

"It hurs-- I can't breathe Dean-- and I can't breathe and I-- I..." Sam's cries began quieting down and his eyes lazily slid shut as he slumped against the side door.

"Sam?" Dean panicked and grabbed Sams' jacket's lapels and began shaking him.

"Sam, wake up man... WAKE UP!" Dean yelled as Sam remained motionless in his grasp.

Dean rested his brother back against the door and noticed that Sam was still struggling with his breathing even unconscious;

His eyes were darting in crazy coordination under his closed eyelids.

His mouth parted and an anguished moaned drifted past his lips.

"It's a vision?" Dean mentally questioned