Hello, I am 38 and I never exersize and am a stay at home dad, I have had dull pain in my left side chest erea come and go on and off for about a year or so.Last night I woke up to the pain back and I thought heart attack.But I had no numbness, no breathing problems and no heart attack yet. This pain is dull and not sharp and it is like I got hit or kind of like I worked out that part of my body. The pain is not bad but worrys me a bit, I dont want to die of a heart attack,I want to die in some sort of battle or mabey a good fight,I want to know I about to die before I do,so it scares me that I might die in my sleep. Should I go to the doctor or is it just a sore muscle, becouse I am still not dead yet.