Something's not quite right.

It seemed like just another average day for the residents of Ponyville.

Applejack had been up since the crack of dawn, working on the days bucking. Twilight was busy with her studies and directing Spike with his chores. Rarity was busy in bed, catching up on lost beauty sleep after a hard night of filling orders. Fluttershy was deep in her daily routine of feeding and checking up on her various animals and Rainbow Dash of coarse was busy either napping or perfecting her latest trick.

But what of Pinkie Pie you may ask. Well, this is how that particular ponies day began....

She awoke as she did to any other day, with an array of various tell-tale signs that came with the mornings in Ponyville.

The birds were the first thing she noticed, as they were perched in a tree just outside her window at Sugarcube corner, singing a soft melody as the other ponies below went about their morning business.

She made an attempt at opening her eyes, but quickly screwed them closed again as the sun pierced them though the very same window. Groaning, she managed to roll out of bed onto all fours and rubbed her stinging eyes until she regained her sight.

Going at a rather slow pace, she trotted her way towards the bathroom where she gazed upon herself in the mirror hanging opposite the door. Not to her surprise, she saw a dull pink mare staring straight back at her. Her mane was straight as it would go and pushed behind one of her ears. Her eyes were half closed, both from being tired and the fact that she wasn't in the best  of moods and last but not least, her mouth had taken on a neutral form, with slight down-turns at the corners.

Giving a small sigh, she picked up and ran a nearby comb through her mane and tail to straighten out any hairs that had go astray sometime during the night.

Making her appearance as acceptable as she could, she descended down the stairs to the main floor of Sugarcube corner and made herself breakfast, which consisted of a plain dandelion sandwich and a glass of water.

Upon finishing her rather plain meal, she decided that she may as well wander through town, considering she had the day off.

Pushing the front door open, the bell above gave a small chime as the pink mare made her way out into the now busy streets. Only to be once again blinded by the intensity of the sun.

Groaning once again, she rubbed her eyes a few times before setting off down the street at a slow, deliberate pace.

Keeping her head down the majority of the way, she wished to have as little contact with the other ponies as possible. Continuing with her walk, she noticed Bon Bon browsing the wares of a nearby stall. Although Bon Bon had given her a friendly wave and beckoned her to join her, she darted her gaze back towards her hooves and quickened her pace slightly around the next corner, hoping that the friendly, purple and pink maned mare assumed she hadn't seen her.

Somewhat pleased that Bon Bon hadn't decided to chase after the pink mare, she continued with her slow trot through the town, hoping nopony else would try and talk to her. Alas, this was not to be so. As not a minute later, an unfamiliar voice from above called out in her general direction, "Hey Pinkie Pie !".

Keeping her head down, she acted as though she hadn't heard and hoped the owner of the voice would leave her alone.

Her hopes were soon shattered, as a flash of cyan appeared before her and she came nearly face to face with a rainbow maned pegasus, hovering a few feet off the ground with her head craned so it was level with the pink mare's.

"Hey, are you ignoring me ?" The cyan pegasus asked, continuing to hover just feet from the earth pony.

"Well, I was trying to." Came her reply, a slight, annoyed frown creeping its way across her features.

Taking this as nothing more than a joke, the rainbow pegasus laughed and put hoof on the pink mare's left shoulder.

"You're such a kidder Pinkie ! Now really, have you got the supplies for the pranks you said we were going to do today ?" The mare asked, grinning at the still frowning mare opposite her.

Shaking the hoof of her shoulder and giving the spot it had touched a look that resembled disgust.

"First don't call me that." She replied in a tone devoid of all emotion. "Second, I have no desire to 'prank' with you. I don't even know who you are." She added, receiving a rather confused look from her conversation partner.

"Wait, what ?" The bewildered pegasus asked. A look of disbelief came across her face. "Pinkie... it's me Rainbow. You know, best flyer in Equestria ?" She asked with a worried grin, hoping this was some kind of joke.

"I told you not to call me that." Responded the pink mare through gritted teeth. "My name is Pinkamena." She added, fighting her growing frustration with the conversation at hand.

Eager to end this pointless expression, Pinkamena continued speaking before the still confused looking pegasus before her could respond. "Now if you'll excuse me." Was all she said as she trotted straight ahead, pushing the cyan pegasus out of the way as she went, a frown now firmly etched into her features.

All that was left was a dumbfounded Rainbow in the pink mare's wake. "Wh...What ?" Was all the mare could blurt out as she watched the pink mare disappear down the street towards the food stalls.

More than certain that something was up she took off in the direction of Twilight's library, hoping that the lavender unicorn would have an explanation.

As she continued her journey through the bustling markets of Ponyville, the pink mare rifled through her memory banks, attempting to decipher who the rainbow maned pegasus was. She did claim to know her, however she had no recollection whatsoever.

"Strange" she thought to herself, the firm frown never leaving her face.

She continued her seemingly endless wander, deep in though, but was rudely interrupted by a loud gurgle from her stomach.

Realising that she had gone without food for several hours. She decided it would be best to get something to eat and settle her furious stomach. Noticing a nearby apple stand, the pink pony made her way towards it, catching the occasional glimpse of the stands owner through the crowd, An orange coated earth pony such as herself, sporting a stenson hat.

As she approached the stand, the orange pony gave her a welcome that made her reconsider her choice of food stall.

"Well, howdy there Pinkie !" She greeted, giving the pink mare a warm smile and a wave. "Didn't expect ta see you round here at this hour. What can ah do for ya ?" She asked, pleased to see that her friend had chosen to come an visit.

Giving the orange pony a very confused stare, Pinkamena tried to remember if she knew this pony. "Another one claiming to know who I am ?" She thought. "And why do they keep calling me Pinkie ?" She asked herself, completely ignoring the still smiling earth pony in-front of her.

"Ya'll alright sugercube ?" Asked the stall vendor with a confused look, after not receiving so much as a peep since the pink mare had arrived.

Breaking herself from her trance, Pinkamena came back to reality and simply answered, "I'm fine." Before looking over the stalls wares.

"Can I have those two please." She asked, pointing out two ripe looking apples, refusing to make eye contact with stranger.

"Well sure Pinkie." Came the response as the earth pony grabbed the apples and put them in a small bag with a red apple on the front.

"You feelin' ok." She asked, noticing that Pinkie was acting rather strange.

The pink mare just gritted her teeth, " I hate that name. Why do they keep calling me that ?" She asked herself.

"I said I'm fine." She replied sternly, an annoyed expression returning to her face.

Putting several bits on the counter and taking her bag, she began to trot away, but was soon stopped once again as she spotted the same cyan pegasus from before trotting towards her rather quickly with a lavender unicorn in tow. Both wore expressions of plain concern.

"There she is Twi." Rainbow pointed out as she spied the pink mare in-front of Applejack's stand.

Pinkamena watched with a mix of both confusion and annoyance as the unicorn trotted up to her and greeted her.

"Hey Pinkie. Rainbow said there was something wrong with you and she wanted me to..." Twilight tried to continue her sentence but was cut off by Pinkamena, who had finally had enough.

"One !" She said loudly. "Do. Not. call me that !" She stared down the three ponies who now stood before her with an expression of utmost frustration. "Two ! Just who in Equestria are you ponies ?" She asks, essentially radiating annoyance, eyeing each of them in turn with a gaze of suspicion.

"Answer me, now." She demanded, stomping her fore-hoof against the dirt path, after several moments of silence and worried glances among the ponies assembled before her.

"Told you something was up." Rainbow murmured out of the corner of her mouth at Twilight, who wore the same dumbfounded expression as the rest of them.

This is just the start. I have a fairly good idea on where to take this. It just depends on what kind of reaction it receives as to whether I continue writing it or not.