Weeks ago I suddenly had some sharp, shooting electric shock like pains in my chest, either shooting down one arm, or up into my neck. Lasting only a second, but a bit scary. I had a few over the course of a weekend, so I went to the GP. He though it was probably just that I was feeling ectopic beats, and nothing to worry about. I was still a bit worried (I am generally prone to palpitations and ectopics, which frighten me anyway), but I didn't have any more, so I slightly forgot about them. Anyway, just had another, sharp shooting pain, from my chest, up the side of my neck. I had had a run of palpitations a few minutes earlier (which I get a lot anyway at the moment). So does anyone think this is worrying? Or should i try and relax about them? I have an underactive thyroid, and am 50, so maybe hormonal? Family friend dropped dead of a heart attack out of the blue last week which isn't helping me relax about this!