Im 18 before this event I had an Ecg about 4 months back.last Wednesday I think I may have had a heart attack. I was sat down watching tv when I got this pain in on the left side of my lower chest I also started to feel pain in my shoulder, this last about 5 min or so. Ever since then I ve been getting these moment where my stomach starts to feel strange and need to lay down the feeling last for a while when it happens ,Also some times my legs get very weak.