Been having a twitch on my left stomach area just under my ribs for most of the day it comes and goes is it just a muscle spasm ?

It may be a muscle: strain, like an intercostal muscle, or rectus abdominis, that spasms from overuse or electrolyte disturbance, such as low potassium or magnesium. Try drinking some electrolyte replacement drinks such as Gatorade or Powerade. If it doesn't change, go see a healthcare provider for proper diagnosis and treatment. Thanks for trusting in HealthTap.