 Other symptoms, irregular heartbeat, heart racing, chest pain can come and go, but the risk of stroke stays. If you have symptoms, tell a doctor. Visit notimetowait.com. Sponsored by Bristol-Myers Squibb. Tune in to KNOX every Saturday from 9 to 9.30 to listen to Dr. Chalaya with the Heart Institute of North Dakota. Call in or text us with your questions regarding your heart with Dr. Chalaya every Saturday from 9 to 9.30 on 1310 KNOX.