What sort of pain are you experiencing? Is it a dull, achy sensation, telling you that you’ve worked out effectively and achieved something? Or is sharp pain, letting you know that you’ve injured something or exacerbated an existing problem?
If it’s the first type, pat yourself on the back and be proud. Everyone who exercises seriously, regardless of age, experiences that achiness. When you’re new to workouts, the sensation can be severe and last for a couple of days. Over time, as you become stronger and more fit, it diminishes and is gone within ½-to-1 hour.
If you have sharp, acute pain, however, please listen to your body. Something’s wrong.