Author's Note: I've decided to make the fanfiction a series of cute little flashbacks, where each chapter is a flashback, instead of my original idea. What do you think? This particular flashbacks explains why Ed hates milk.
Al is 3, and Ed is 4.
Trisha looked out the window to see young Winry, Alphonse and Edward taking turns on swings outside. Coming out, she asked sweetly "Would anyone like some cookies and milk?" Aru got off of the swing, as it was his turn, and came over to his mother to give her a hug. "Yes please!" he anwered with a grin. Edward and Winry nodded as well.
Trisha smiled, bent down to give Al a kiss on the cheek, and went inside to place the cookies on the table and pour the milk. Winry ran inside after her and tugged on Trisha's apron. "Auntie Trisha?" Trisha looked down at the small Winry. "Hmm?"
Winry smiled. "Um, my parents are docters and I was wondering if I can look at Ed's milk…um..to see if it's healthy?"
Trisha stared at the little girl for a moment, pondering her strange request before she answered. "Sure, dear." She poured some milk in a glass and handed it to Winry. Winry brought it to the table, and poured quite a bit of salt in before handing it back to Edo and Aru's mother. "Okie, it's perfect!" she said with a mischievous grin. Trisha looked at her in wonder, before answering "Um, thank you sweetheart."
Ed and Al came in a few minutes later, and Ed smiled. "Ready for the cookies, mom! I'm starving!" Trisha grinned and put the cookies and milk on the table. All the children ate their cookies happily, and when Edo reached for his milk, Winry stiffled a giggle. Taking a huge sip for his size, he spit it out at once clutching his stomach. "GROSS! Mommy, what's in the milk? It's really really sour!" Al looked at his brother and said quietly "Nii-chan..my milk is fine…" Trisha took the milk from Ed and looked at Winry with a smirk. "Winry-chan…" Edward continued to gripe. "Yucky…ugh…I hate milk…I'll never, ever, ever, drink it again!" he said as he crossed his arms stubbornly.
That night, after Winry had gone home, Trisha was pulling pajama's over Edward's head when a small whimper suddenly escaped him. After she finished changing Aru, he grabbed his stomach and tears formed in his eyes. Trisha came over and kneeled down to his level. "What's the matter, Edo-chan?" He leaned against his mother and whined a bit. Still clutching his stomach, he said "Mommy…my tummy hurts…" Usually he didn't like to be picked up much, but he let Trisha scoop him into her arms. "Let's she how things go tonight, and if it still hurts in the morning…um..I'll fix it, alright?" Edward nodded, but his stomach hurt so badly, a few tears slipped down his cheeks.
At sunrise the next morning, Aru was at his mother's bed, tugging at the sheets gently. "Mom, Nii-chan is crying in his sleep, really hard." Trisha woke up at once, and got out of bed, crossing the hall to Edo and Aru's room. She shook him gently. "Edo.."
His golden eyes snapped open, and tears were pouring from them. "It..still…hurts.." he murmered. Trisha nodded, scooped the tiny boy up and got him dressed as he leaned on her helplessly.
After a while, they were walking to town, with Edo and Aru asking where they were going the whole way, but Trisha didn't answer.
Finally they arrived, and Ed's eyes widened. "Mom! This is the docter's office!" he shrieked. "I can't go there, they'll kill me!" Aru looked at his mother with a worried expression on his face. "They won't hurt Nii-chan, will they?"
Trisha bent down and brought both little boys into her arms. "It's going to be fine. The docters are going to fix Edo-chan's tummy, so it won't hurt anymore." Ed held onto his mother softly, but his eyes were glaring. "What do you mean, fix it? Mom, you promised you'd make it better!" Trisha kissed Ed's forehead and said "But I'm not a docter. You'll be fine, honey. We're going to see Winry's parents." Edo crossed his tiny arms. "I don't care! I'm NOT going in there!"
Eventually, Trisha was forced to carry a screaming blond little boy inside, Al nervously biting his lip. " PUT ME DOWN!" he wailed, kicking and shrieking with all his might. A few minutes later he ran out of energy, and he sat on the floor, pouting and crossing his arms.
Eventually, they called the Elrics in, and Sarah Rockbell, Winry's mother, greeted them. "Hello, Trisha. Long time no see. What seems to be the problem with Edo-chan?"
Trisha bit her lip. "Edo has been complaining about his stomach hurting him, so much he's cried in his sleep." Sarah nodded. "I see. Was this after eating or drinking a certain substance?" Trisha blushed. "Actually, I think Winry may have done something to his milk without meaning to." Ed stared at his mother. "You let Winry get a hold of my milk?" he asked nervously. Sarah blushed as well. "I see…well, I'll run a few tests and see what we come up with, alright?"
After the tests, it was clear that Edward had a allergic reaction to the substance in the milk. When it mixed with the milk, it had a "deadly" affect. Sarah said quietly "Trisha, it should be cleared up fairly well with a s-h-o-t." Trisha nodded, grateful that Edward and Alphonse couldn't spell yet. Trying to distract Edward from the needle, it was too late. He saw it, and in moments was trying his best to run out of the room. Al grabbed his brother's arm and said calmly "Nii-chan, it will be over soon if you sit still." Ed was trying to get out of his mother's grip. "Easy for you to say! I'm gonna get Winry for this!"