In this video, we learn how to understand different kinds of pain in a workout. Muscle pain that is scarring is sign of a serious injury that has occurred, so see a doctor immediately. If you cannot stand to move and are in severe crippling pain, you need an ice bag and rest immediately instead of keeping at it. On the flip side, there is a good type of pain you should feel after you work out. If you are doing intense workouts, you will probably be feeling strength pain throughout your body. This pain should be intense but it is not a crippling pain. This is something that your body naturally feels because you are pushing yourself intensely.