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.
Soreness can serve as encouragement in a workout program because people like immediate results. Muscle doesn't visibly [grow] overnight; nor does your time in the mile drop from eight to six minutes, says Draper. So something like soreness can give people encouragement that they are in fact working the muscle..