Acute muscular soreness refers to the burning sensation you get while exercising. While DOMS will not appear for hours or days, you will feel acute muscle soreness during your workout.
You’ll feel it in the muscles you’re working—for example, if you’re doing overhead presses, you’ll feel it in your shoulders and triceps—and it tells you when it’s time to quit, and you won’t be able to squeeze out another rep.
Injury pain is often felt in a specific bodily area, such as a tendon or a joint. It can be more acute and persistent than muscular pain. It can range from a continuous “ache” (even while not moving) to severe pain during movement or activity or subsequently with a specific movement.
It can keep you awake at night. If you have discomfort, your joints or muscles may become exceedingly stiff if you rest or sit for an extended period. Pain from an injury may not go away on its own.
Pain might also alter your movement. If you limp due to pain or prefer one shoulder over the other, this might indicate an injury.