You haven't been at the lair for the past few days. Eventually, everyone did become worried, so you stopped by. You acted normal, despite a couple of sniffles and coughs, nobody expected anything. Everyone except Donnie.
Later, he called you to help him in his lab, which you gratefully accepted, since he normally doesn't invite you in his lab to help. Then, he closed the door and looked directly and intensely at you.
He frowned, his head tilted a little down as he looked at you. "You aren't that sly, you know?" You felt his other hand hold your elbow, still as he looked at you he felt your forehead for any warmth or signs of fever. He thought of a few things that it could be.
"You're burning up," He said in a calm tone with a slight frown, "You're kind of dumb for thinking you can hide away your sickness from me." He took a step back, and cleansed his hands with hand sanitizer.