When you see your doctor, ensure you tell them all of the injuries you sustained in the accident, no matter how minor.
Try to be as accurate as possible so there is no confusion as to the cause of your injuries and what injuries you sustained, when you wish to later bring a claim.
But be aware, doctors usually record what you tell them, so keep your comments to your doctor concise and accurate.
Don't confuse them with information which may compromise any future claim you may wish to make.