I started to workout for the first time in a while yesterday doing the elliptical machine and about 10 mins into my workout my bottom teeth started hurting. It got so bad that i had to stop my workout. The pain was a combination of sensitivity and throbbing pain. It has been 12 hours since then and they are still bothering me. I workout on and off again and have been for years and this is the first time anything like this has ever happened to me. I am concerned that it can be related to a heart issue. Can you please help?