A muscle spasm — also known as a charley horse, muscle cramp or twitch — is a sudden, involuntary movement in one or more muscles. Common causes include stress, exercise, or dehydration, but nerve ...

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 ...

The sensation of chest pain can immediately send your mind racing to: "Oh no, am I having a heart attack?" And, it's true that severe pressure or tightness in the chest is the most common symptom of a ...

Stiff person syndrome (SPS) causes you to have muscle stiffness and spasms, often triggered by sudden noises or touch. You can use medications like muscle relaxants and anticonvulsants to relieve ...

Q: I had a sudden, twisting jolt when I jumped off a ladder and within a day my chest started to really hurt when I moved or breathed. It become incredibly painful when I coughed or sneezed. Even ...