I've got quite a bit of experience in the claims side of this equation, but it would be wrong to offer too much advice. I will tell you that the adjuster will be in a rush to settle your claim, and you need to let him know that you won't rush into anything. Please ask him what the statute is on your claim. You'll have anywhere from 1-3 years to settle the claim. It's not about robbing the insurance company, but it's certainly too soon to properly assess your injuries completely. Be honest, and let them know that you're still treating, and you're not comfortable signing anything. I'm happy to answer any other questions you have after meeting with him/her.

As far as the pain - healing is up to the individual. Heat for your sore muscles - hot bath or shower, and see how you feel in a few days.