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.
After participating in some kind of strenuous physical activity, particularly something new to your body, it is common to experience muscle soreness, say experts. Muscles go through quite a bit of physical stress when we exercise, says Rick Sharp, professor of exercise physiology at Iowa State University in Ames.