Why did my schnauzer go limp and stop breathing while playing ball?

If your schnauzer went limp and stopped breathing while playing, it could be due to several serious issues, such as a respiratory distress, heart problem, or heatstroke. Intense physical activity can sometimes trigger underlying health conditions. It's crucial to seek immediate veterinary assistance, as these situations can be life-threatening. Monitoring your dog for signs of distress during play can help prevent future incidents.