During the match with Kaijou, Kise had hit Kuroko in the head so hard it was bleeding. When they went to the doctor (an ordinary one) his results were perfectly fine. However, after the match with Rakuzan his head had been aching a lot, he get dizzy really easily and his stamina had lessened dramatically. So he decided to pay his long distance old friend that just returned from America a visit, to say hello and if convenient, have a check-up.
"Hey! Kuroko!" she greeted as she saw him, he don't know why but she can see him almost every time he appear 50 metre in her radius it's like his misdirection doesn't work on her, well it does but not often. "What's…up?" her voice trailed as she looked at him with concerned eyes "Are you sick?" He doesn't even know how she can tell but she is a professional doctor
"I do not quite sure myself so I came to greet you if possible a check-up," he answered his face as stoic as ice.
"Even if you're unwilling I would have forced you down to do a thorough check up anyway. Come on in," she waved her hand into the apartment "Well I am a doctor so I have a patient room ready in under any circumstances so climb on the bed." she demanded as she scrambled through a big cabinet with many medical instruments. Finally, she settled down with a medical technology that he doesn't even know of and started to set it up.
After a few minute of the technology scanning and testing, the doctor finally spoke while taking Kuroko's blood sample "Say, Kuroko recently did you have any major or minor injuries to your head?"
"Well…I did get hit once during a practice session with Kaijou high and a minor during a match so…."
"I see" she removed all the instrument and put them back to their origins "The results should be out by the end of this week so come by and I'll explain and don't you dare get worked up and exhaust yourself because you'll find yourself strapped to this bed, unable to leave." she threatened and smiled as she start investigate his symptoms "Well how do you feel?"
"Recently there have being a lot of headache hitting me quite often, and my joints are hurting more than usual maybe because of the coach's training, dizzy spells came even more often..." he paused to let her take it all down.
"Anything else?" she asked over her notepad.
"My head feels really heavy and I can't think properly and my sleeps are all disrupted and sometimes when others check my temperature it either drops really low or raise too high"
The doctor narrowed her eyes and stopped taking notes as she glanced at her friend worriedly "We're done for today~!" she said cheerfully "But I do wish that you don't have what I think you have but still don't overwork yourself."
What does she mean by that? He doesn't know.
The doctor looked at her friend's back turned away in concern 'There's no way he'll have it…is there?' she smiled sadly then stepped back inside to run through the results she temporary have. She glared at the screen "It's matching up…That's no good."