A/N:
Firstly: I have a huge thanks to give to emnm2525 for the review.
Thanks to emnm2525 I have more confidence in this story.
Second: I couldn't think of what to actually write for Headache / Migraine in absolute detail.
Hopefully this is OK.
For a while Cas thought the whole loss of his Grace was finished by now, it had been six months and he was completely fed up and done with the whole situation of Dean hovering over his shoulder and him being unable to take care of himself and those around him when it counted.
He was wrong.
His head pounded day and night without any indication of ending any time soon.
He could brave-face his way through the missions he forced himself to go to as a distraction but it usually made a worse situation just horrible.
He and Dean were still on an awkward stand still with talking to one-another. It was awful but they had to put other priorities over personal ones.
Dean had taken off during the raid, Croats had caused the group to split off, Dean was alone, so was Cas while Risa, Charlie and Adrian were lucky to hold themselves together. Cas had attempted to follow Dean's trail despite being chased by 'people' who could kill him with ease. Managing to lose his band of Croats through tight spacing and a broken window Cas was safe for now though his headache still hadn't let up. Cas felt his head pulse after every pounding step he took but he had to push his own problems aside, he could hear faint gunfire to his right and decided to follow it, he had his own machine gun and knew he had about half of his ammo reserve left meaning he had to make every bullet count.
Cas finally found something, it made him feel sick to his stomach, it was Dean's blade; something that was never put down and the traces of blood weren't exactly persuading Cas the situation was any better. By chance he heard an echo of Dean's distinctive voice a little further down the street, it made his temple twitch in agony. With caution Cas headed towards what he hoped was Dean with his blade in his hold like he use to hold his own Angel Blade.
Despite the lifetime of training Dean knew it was suicide to be alone when Croats were on your tail. Barely escaping he was startled by a Croat slamming into him, wrestling with the dead woman she had managed to kick Dean's blade away from him, nicking herself in the process. He shot the Bitch twice in the head and scrambled to another safe location. He knew drawing attention was a stupid idea but he'd rather out run them than have the group or non-existent-God knows Cas be chased around the area. He shouted "Come and get me!" He could hear his own voice trace down the streets and roads. Someone heard him, he just hoped it was a friendly. Wishful thinking.
A large body of a man stumbled around the corner, blood dripping from his lips and his skin disgustingly grey and covered in possibly anything charged at Dean, the two were brawling on the ground, the Croat managed to grab Dean's neck with a mighty threshold. Dean could only weakly struggle for a moment before the Croat was ripped off of Dean to be spun around in an impressive choke hold to then be stabbed in the spine, then the heart then had its neck snapped.
"Are you alright?" Dean believed Cas' voice was an illusion but nevertheless accepted the helping hand onto his feet.
"Dean?" Cas analysed the Winchester for injuries or signs of changing but none were there.
Finally Dean caught up with himself "Cas, thanks for that"
"Couldn't have our Fearless Leader taken out wordlessly, could I?" Cas smirked past his throbbing skull.
"Guess not," Dean patted Cas' arm, "come on" Dean gripped Cas' arm since he was now faster and lead them back to the vehicles avoiding the remainder of Croats.
After the adrenaline pumping finishing sprint both Winchester and Novak were exhausted, luckily they were passengers this time so the two rested contempt against each other in the backseats.
"Here," Cas' voice broke the silence handing back the bloody knife.
"Thanks, take this" Dean offered some painkillers "I've known about your headaches for a while now"
"You're getting better at this," Cas joked rubbing his eyes one-handed.
"You know you may be losing your Grace but that doesn't mean your Angel instincts are completely gone"
Cas didn't respond
"The way you handled that Croat, I couldn't help but think of when you would pop up out of nowhere and save my ass"
Cas still hadn't said a word, it wasn't on purpose, he was just trying to think of a time when he was useful to Dean's cause while distracting himself for the oncoming Hell of a migraine.
"Anytime Dean, like always I'll try to keep you updated but I think I'm, as you say 'on the home stretch' now" Cas replied cringing as the headache consumed him even further into a state of sleep.
Neither had realised that their hands were still connected by the time the returned to camp.
Extra Note: I have no clue where to go from here. I may touch upon the fact the Cas told Past Dean that he broke his foot.
I might create a Fragile / Broken Bone(s) Chapter.
Let me know what you all think.