Often triggered by eating, these muscle spasms affect digestion ... like an object is blocking your throat or chest when there's nothing there—a feeling called globus hystericus.

Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

While sitting still at your desk or watching TV, you sense a feeling of muscular discomfort ... as if a bug is jumping around beneath it. The random muscle twitch is at best annoying and at ...