Thanks for everyone's support. I'm ok today. Got checked out & due to other health issues I experience, it hadn't been my heart, phew! I suffer from esophagitis, hiatus hernia & chronic bowel problems. Its been a build up of digestive problems.
The pain has stopped today. Been told due to my heart condition only need to visit A & E if I have very bad pain in middle of chest, very bad palpatations or very short of breath. Not that simple though is it!!