To diagnose a problem with the port, try using a different battery and cord for a while. Damaged Power Cord. The power cord is a wire inside a plastic sheath, and the wire can break with or without damage to the sheath. If the power goes on and off as the cord is moved or bent, the wire is likely broken.
You can work out if you're sore. Don't exercise the same muscle groups that are hurting. Do legs one day and exercise your upper body the next. By doing so, you'll still be able to get exercise and allow your lower body to recover and rebuild.
Sore muscles may occurrence after a strenuous workout or after you use them in new ways. But if you suffer from chronic sore muscles, it may be a sign that something else is going on in your body. Calcium and magnesium are linked to bones and muscles, and regulate their contraction and release.