today I was driving and all of a sudden my chest really hurt by my breast bone and around my ribs I felt like I needed to take my bra off but didnt mu jaw really hurt both side way up to my ears, so my ears hurt. kinda felt like it hurt to swallow it lasted about 20 minutes. i was really scared, its gone now my jaw still hurts a little and I have a slight headache where the jaw bone is by my temple. It would subside but then came back stronger where my chest really hurt but it is gone now i was never dizzy or felt clammy or felt faint, or naseous, Jayne I do have a pace maker but I never felt my heart racing or my blood pressure too low thank you