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.
While sore, don't expect to set personal records. Most likely, during a bout of DOMS, your exercise potential will be out of reach, says Draper. Delayed onset muscle soreness usually affects only the body parts that were worked, so perhaps you can work other muscle groups while letting the fatigued ones recover.