Severe pain in left side, upper torso?!

Severe pain in left side, upper torso?

I just recently suffered from an all the sudden piercing pain in my upper left side. right about where my lung is. I tried to strech it out but that just caused it to hurt even more. I was doubled over in pain, got real hot, started sweating even... that lasted for a minute or two, then all the sudden my pain was gone? Mysterious, i know. Should i be concerned, do you think its serious?

Thanks
-6lu

It could be muscle spasm. If it happens often, see your doctor. But maybe you just turned wrong too fast, or something like that. An ice pad can help deaden the pain, if it lasts any longer then a few minutes.