I guess it depends on whether he is having panic attacks or "panic attacks". Sometimes people exaggerate and say "I am literally having a panic attack" when they're mildly anxious. Maybe it's just run of the mill buyer's remorse. I know I would absolutely have buyer's remorse if I ever managed to spend $30K on a car, let alone $60K. I don't think that, in and of itself, makes me unhealthy.