What are these stabbing pains?

every so often I get stabbing pains either in my wrist, my elbow, my knee, my throat, the back of my kneck or my breast, Ive gotten them all my life but they only last about 5 seconds so i never really paid attention to it, but its starting to scare me, Im 22, I have children and otherwise im in good health other than some chronic stomach problems (gastritis)..

have any of you ever experiences something like this?