I am 32 year old female and for the past 3 months I have bee...

I am 32 year old female and for the past 3 months I have been experiencing a stabbing pain in my heart. This pain has come whenever i have been lying down, sitting down, and standing. It usually lasts for about 2 minutes and then goes away. At first it was only about 1 time every two weeks and now it is about two times a week. It feel like someone is stabbing an ice pick in my heart. Yesterday I bought a heart rate watch monitor for when i exercise, which i do daily, to make sure I am in my zone while working out. My resting heart rate stays between 55 and 62. Last night while sitting in my car at a stop light I experienced this chest pain again, and since i had the watch on I decided to check my pulse. It was 125 and remained in the 120s for the entire 4 minutes that i was experiencing the pain. once the pain was gone my heart rate was back to 67. I am concerned mostly because I had open heart surgery as a 2 month old baby for a pinched valve. Can anyone offer me some advice? I am afraid I may have a serious problem.

Stop messing around asking questions on websites ... GET TO A HOSPITAL URGENTLY.

That pain is telling you something is wrong! Get it checked out right away ... don't wait for another stabbing pain.

If it's a heart attack, the last place you want it is while driving a car ... you're endangering yourself further and other drivers and pedestrians beside the roads. Get someone else to take you, or in the middle of an attack, call emergency.