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.
Your muscles might feel sore after a run or overdoing it at the gym, particularly if you don't normally exercise as rigorously. This occurs due to muscle damage and the buildup of natural waste products in your cells. Eating the right foods before and after physical activity can help your muscles heal faster, ease soreness and pain and even protect against muscle damage in the first place.