I’ve had them. Lots of intense pain. They tend to go away over time, and are often just a getting in shape thing. People that are out of shape and then try to get in shape or do something, like a thru hike, which will put them in shape, will experience lots of aches and pains from the getting in shape process.
Best to slow down and take it easy a bit until the pain goes away. Walking it out or working it out is good, but only to a point. You can overdo it. “No pain, no gain” is true, but pain is there for a reason-----and if with a little working/walking it out, it gets worse, then rest of a day or so may be required.
It’s kind of hard to tell when too much is too much. I’d say just take it slow and easy to start, it will take 2 to 3 weeks to get in shape. At that point, all pain should pretty much be gone, but if you overdo it on any given day, the pain will come to let you know you did. So listen to your body, but also remember that pain is a natural part of getting in shape.
See you out there. :cheers
Maintain