When Madam Pomfrey finally found the root cause for Harry's current condition, she tore her eyes off of the boy, so that she could glower at the Headmaster instead. "Dumbledore you senile old goat! The boy lying next to me is both a miracle and an impossibility! Ohhhhh, yoouu have some explaining to do, and you're going to do it now! Harry was given an Eramus Servientus potion, Dumbledore! He was given a permanent Bondage potion as a baby! Your meddling should have gotten Harry killed by the time he was four years old!"
At first Dumbledore looked completely stunned by Madam Pomfrey's words. He was legitimately shocked, which caused him to look back and forth between Harry and his Healer several times in rapid order. Thankfully for everyone involved, the man's confusion didn't last very long. After just two or three seconds, the bewildered look slipped off of Dumbledore's face, at which point he began to look absolutely livid instead. He visibly boiled over with rage as he straightened and stared right back at his Healer. "I tasked a man that I trusted with giving Harry a simple accidental magic bind. The potion he was supposed to give Harry would cease to exist by the time he was four or five years old... I did not ask him to completely strangle a baby boy of his magic!"
Dumbledore was losing it big time now, and his magic was flaring all throughout the room.
As the Headmaster's rage-fueled aura was projected out into the room to commingle with his own, Harry learned several different things at exactly the same time. Dumbledore was waaaay more emotional than anyone would ever have been able to catch just by looking at his carefully bland appearance. Hell, Harry could actually feel the man magically repressing and controlling his own roiling, bucking emotions. If Harry had to guess, he'd say that Albus Dumbledore... paragon of virtue and light in the magical world... was trying to stop himself from committing murder!
Next, Harry sensed that the Headmaster owned two wands. One wand was in his robe pocket like normal and one was resting in a secret holster around his right thigh. Harry could also tell that the man was obscenely strong (obviously) and his body was literally riddled with defensive magics. While Harry had absolutely no idea how it was happening, he was picking up an uncontrollable flood of information through his magical senses, and it was being channeled into him all at once. In fact, as more and more information was forced into his mind, Harry began having trouble focusing on the here and now.
With all of the extrasensory distractions being foisted upon Harry's overburdened mind, he was having trouble organizing his thoughts in any helpful, structured way. Soon enough, Harry had his hands on his temples again, because there was way too much new and he couldn't keep up. Lots and lots of new... New information, new feelings, new emotions, new awareness of the living things around him, and new senses that he couldn't begin to name let alone interpret. In a moment of desperate need, Harry yelled out into the completely quiet room.
"Headmaster! You're overwhelming me with information right now! I need you to restrain your magic!" Dammit control yourself, Harry berated himself over and over... He didn't have time to continue unraveling like this. He needed answers ASAP, so he couldn't afford to be completely consumed by Dumbledore's aura.
Dumbledore's out of control anger was halted right in his tracks by Harry's amazing pronouncement. Over the next couple of seconds he strangled his magic back into his body and then turned towards his student with a serious expression on his face. "Harry... What did you mean by what you just said? Your magic is picking up information for you?" Dumbledore was completely flabbergasted for the fourth or fifth time in just a little over an hour (he was losing track).
Crossing his arms across his chest, Harry gave Dumbledore his most no nonsense look. "No. Not this time Dumbledore... I think we should start at the beginning. Why am I an impossibility and why should I be dead?!"
With a nod of her head, Madam Pomfrey walked over to Harry's side and sat down at the edge of his bed. "Harry... When you were an infant it appears you were performing a lot of accidental magic." She stared at Dumbledore, waiting for confirmation, and then she sighed when the man reluctantly nodded his head. "It sounds like Dumbledore asked a colleague of his to create a common potion that would've kept you from accessing most of your magic. It's only purpose would've been to contain some of your magic, until you were out of infancy and more in control."