The surface damage is easy to be counted. I think one important thing is that the unvisible things, such as health problem is difficulty to be value. You need to find all your health problem right now. I know a case, he was in a car accident. At very begining, he did not find his back's problem. Three months later, he felt uncomfortable and went to hospitle. However, the defedant insurance said it happened after the car accident some days later.It may happen in other accident and refused to be responsible. So, be sure to ask your lawyer to give you instruction