Same thing has been happening to me. On and off pain on the left side of chest. I also got an ECG and everything was OK. i still have the bloody thing and its driving me mad.. it even radiates to my back and sometimes my left arm. I also have GERD so that's one potential cause. I reckon in your case it would be muscle strain. its like this, if something was going to happen, it would have happened by now. Also, pain from the heart is generally at the center of the chest, not to to the left and would feel like a tight band. also the fact you can pinpoint the pain suggests its not from the heart as pain from the heart can be hard to pin point. it more than likely is muscle :)
Thanx Paul2222... Its jst scaring the hell outa me, I was given some pain relief but but im not sure if its wrking bcause when I dont take them it goes away, whn will it totally go away, when im lying dwn relaxing on my tummy i cant feel anythng its mainly when im sitting, when i go for walks its also ok. I did have a bad case of heartburn/reflux & im on meds 4 that which is helping maybe that couldve caused it, I hope its muscle strain but why is there no pain relief. I thnk thats why im more anxious bcause I have alot ov chest pain, it also goes up my bak & I also feel tingling... Im soooo scared it could be somthng more & right now I hate the doctrs because I think they dont care. I really want to see a cardilogist but will that put my mind at ease if they say everything is fine? Im not on any meds at the moment the doctors have offered sum anti depressants med but I refuse to take them. Im getting to that point where I think I might need to take them.