"There is not enough circulation (or airway) for him, being an athlete with his heart pumping while he is running," she said. "He could pass out and it could be fatal."
So now, as her son and the family await the doctors' next move, which is likely surgery, Juvon attends school and goes to practices and games, trying to stay positive in a frustrating situation.
"He just went for a stress test and it came back great," Michelle said.
Making things worse, the woman who shared the stress test results with him, on a recent Friday, unknowingly said to him "Good luck with your game tonight."
"He was really confused," Michelle said. "He wanted to find out if he could play. He said, 'Can you call my doctor and see if I can play part-time?' He thought maybe he could play in three home games and one away game."
Even more strange for the family, while Juvon shows no symptoms of the problem, an older sister has had it -- and has passed out -- but all of her tests have come back normal.
Michelle said her son hopes to get his surgery as soon as possible so that maybe he can save his basketball season. He is also a sprinter for the track team.
"This is really stressful for my 15-year-old son. He is not only scared, but this is taking away his passion," Michelle said. "He is stressed out, but he's holding up pretty well, and the team, the coaches, the whole town has been supporting him," she said.
She said Juvon is excited that he can at least be with the team. "It's good that he can still be involved. But it's also hard for him. He doesn't just want to be there and sitting there. This year is a challenge for Juvon."